Argument
Buddhism vs the Christian God
Buddhism vs Christianity, Buddhism vs Christian God, Christianity vs Buddhism, Buddha vs Jesus, Buddhism or Christianity, Does Buddhism Have a God, Buddhism vs Christian God DefeaterIntro
Buddhism begins with something everyone knows: life hurts. Sickness, aging, loss and death come to everyone, and even good things do not last. The Buddha taught that suffering comes from craving, and that by following his path you can end craving and be free.
Christians can agree with more of that than people expect. The Bible also says life under the sun is fragile and hard ("vanity of vanities, all is vanity," Ecclesiastes 1:2, ASV). It also says wrong desire leads to ruin.
The big differences come next:
- Is there a God? Buddhism does not center on a creator, and the Buddha set aside questions about where everything came from. Christianity says a personal God made everything and is good.
- Is there a you? Buddhism teaches anatta, "not-self": there is no permanent self at the core of a person. Christianity says you are a real person, made and known by God: "the very hairs of your head are all numbered" (Matthew 10:30, ASV).
- Who saves? Most Buddhist traditions say you walk the path by your own effort. Christianity says God came to rescue us by grace.
- What is the end? Buddhism hopes for nirvana, the end of craving and of rebirth. Christianity hopes for resurrection and seeing God face to face.
One Buddhist tradition, the Pure Land school, trusts the saving vow of a Buddha called Amida, which looks a lot like grace. That is worth taking seriously. The Christian difference is that the Savior who gives grace walked in history, died for sins, and rose.
Quick reply for a live conversation: "Buddhism is right that life is full of suffering and that craving makes it worse. But it says there's no lasting self and no Creator. Christianity says you are real, God made you and loves you, and Jesus came to heal the deepest cause of suffering, not by erasing you but by raising you."
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Cheatsheet
The 30-second reply:
The Buddha diagnosed suffering and prescribed a path to end craving. Christianity agrees suffering is real and that disordered desire drives much of it, but goes deeper: the root is a heart turned away from the God who made us. Buddhism has no creator to turn back to and no permanent self to be healed. Christianity has both, and a Savior who entered our suffering, died for our sins and rose, so the end is not the blowing out of the self but the resurrection of the person.
The fast facts:
- The Four Noble Truths. Suffering (dukkha); its origin in craving (tanha); its cessation; the path that leads there, the Noble Eightfold Path (first sermon, Samyutta Nikaya 56.11).
- Not-self. In the Anattalakkhana Sutta (Samyutta Nikaya 22.59) the Buddha takes the five aggregates (form, feeling, perception, mental formations, consciousness) one by one and says of each: this is not mine, this is not what I am, this is not my self.
- Dependent origination. Everything arises in dependence on conditions. Buddhist texts say no first beginning of the round of rebirth can be found (Samyutta Nikaya 15).
- The undeclared questions. Asked whether the world is eternal, whether it is infinite, whether the soul is the same as the body, and whether an awakened one exists after death, the Buddha declined to answer: a man shot with a poisoned arrow should get it pulled out, not ask who shot it (Majjhima Nikaya 63).
- No creator. Early texts portray the god Brahma as a powerful being who wrongly believes he made the world (Digha Nikaya 1). Celestial buddhas and bodhisattvas are revered in Mahayana, but Buddhism does not teach a personal creator.
- Two great branches. Theravada (Sri Lanka and Southeast Asia, the Pali Canon, the ideal of the arahant) and Mahayana (East Asia and Tibet, the bodhisattva who delays final nirvana to save others, emptiness, Zen, Pure Land).
- Pure Land. In Shinran's Jodo Shinshu, birth in Amida's Pure Land comes through Amida's "other-power," not self-power. Karl Barth called it the closest parallel to Reformation grace and said the difference is the name of Jesus Christ (Church Dogmatics I/2, section 17).
The 4 strongest counter-moves:
- "Buddhism is not a religion, just a psychology or a philosophy." It has rebirth across lifetimes, karma, heavens and hells, gods and a transcendent goal. Meditation can be studied as psychology, but the Buddha's path makes claims about reality that are true or false.
- "Christianity is about blind belief; Buddhism tells you to test things yourself." Christianity also rests on testable claims: "if Christ hath not been raised, your faith is vain" (1 Corinthians 15:17, ASV). Rebirth across lifetimes and the end of rebirth are not things anyone can verify in this life. See Resurrection of Jesus.
- "Jesus was a bodhisattva who taught compassion." Jesus did not teach release from desire or from the self. He claimed to forgive sins, a thing only God can do (Mark 2:5-7), and gave His life as "a ransom for many" (Mark 10:45, ASV). See Christ vs Other Religion-Founders.
- "Your self is a construct; clinging to it is the problem." If there is no self, there is no one who clings, suffers or is liberated. Christianity agrees that self-centered clinging is the problem, and says the cure is a self given to God and restored, not a self denied.
Reciprocal concessions (grant the small point, then collect a bigger one):
- Grant: life is marked by suffering and impermanence. Now collect: then we know what permanence and wholeness would be, or we could not feel the loss. The ache for what lasts points to Someone who lasts (Psalm 90:2). See Argument from Desire.
- Grant: craving produces suffering. Now collect: not all desire is craving. The desire for justice, for a child's good, for God, is not the disease. The problem is desire turned in on itself and away from God (James 1:14-15).
- Grant: everything we see is dependent on conditions. Now collect: then the whole chain of dependent things needs something that is not dependent. Even the Buddha spoke of an "unconditioned" (Udana 8.3). See Contingency Argument.
The closing line:
The Buddha pointed to a way out of suffering. Jesus walked into it, died in it, rose out of it, and says, "Come unto me... and I will give you rest" (Matthew 11:28, ASV).
In full
Buddhism traces to Siddhartha Gautama, the Buddha ("awakened one"), who taught in north India around the fifth century BC (exact dates are debated). Its teaching was transmitted orally for several centuries before the Pali Canon was written down in Sri Lanka in the first century BC. Today there are roughly half a billion Buddhists, mostly in Asia.
The core teaching, shared across traditions:
- The Four Noble Truths. Life is marked by dukkha (suffering, unsatisfactoriness); its origin is craving; craving can cease; the Noble Eightfold Path (right view, intention, speech, action, livelihood, effort, mindfulness and concentration) leads to that cessation.
- The three marks. Everything conditioned is impermanent (anicca), unsatisfactory (dukkha) and not-self (anatta).
- Dependent origination. Each phenomenon arises from conditions in a chain (classically twelve links) that keeps beings in samsara, the round of rebirth driven by Karma. See Reincarnation.
- Nirvana. The "blowing out" of greed, hatred and delusion, and the end of rebirth. Buddhists stress that nirvana is not mere annihilation; the Buddha rejected both the view that a self lives on eternally and the view that it is simply destroyed, calling his teaching a middle way.
The two major branches differ significantly:
- Theravada keeps the Pali Canon and the ideal of the arahant, the one who reaches nirvana by his own practice. The Buddha's last words, as the tradition records them, urge his followers to strive on with diligence (Digha Nikaya 16).
- Mahayana adds later sutras, the ideal of the bodhisattva who vows to save all beings, Nagarjuna's teaching of emptiness (sunyata), and devotion to celestial buddhas and bodhisattvas. Its schools include Zen, Tibetan Vajrayana and Pure Land.
Does Buddhism have a God? Not in the Christian sense. The early texts accept gods (devas) but place them inside the round of rebirth, subject to death like everyone else. Brahma, whom Hindus revered as creator, appears in the Brahmajala Sutta (Digha Nikaya 1) as a being who arose first in a new world-cycle and mistakenly concluded he had made the others. Later Buddhist philosophers, such as Dharmakirti, argued against a creator God. Mahayana devotion to Amida or to the bodhisattva of compassion (Avalokiteshvara, Guanyin) can look theistic in practice, and some Mahayana thought speaks of an ultimate Buddha-nature or truth-body (dharmakaya). But none of these is a personal Creator who made the world from nothing and to whom the world owes its existence.
The Christian doctrine of God holds that God is one being in three persons, personal, wholly good, eternal, who freely created everything else from nothing, became man in Jesus of Nazareth, died for sins, rose bodily, and will raise the dead (see Trinity, Creatio ex Nihilo and Incarnation).
This page compares the two on the questions every worldview must answer, and argues that the Christian God explains more and offers more, while honoring what Buddhism gets right about suffering, impermanence and compassion.
Side by side
| Question | Buddhism | The Christian God |
|---|---|---|
| What is ultimate reality? | No personal creator; the unconditioned (nirvana); in some Mahayana, emptiness or Buddha-nature | One personal God, Father, Son and Holy Spirit |
| Is there a God? | Gods exist but are mortal and inside samsara; no creator | Yes, the eternal Creator of all |
| Why is there anything at all? | A question set aside; no first beginning is found | God freely created all things from nothing |
| Is ultimate reality personal? | No | Yes: knows, wills, loves, speaks |
| What is the self? | Not-self: a changing bundle of five aggregates | A real person, body and soul, made in God's image |
| What is suffering? | The basic mark of conditioned existence | Real, but not original; the result of a fallen creation |
| What causes suffering? | Craving, rooted in ignorance | Sin, a heart turned from God, and a world under its curse |
| Karma or grace? | Karma; grace-like trust in Pure Land | Grace through faith, secured by the cross |
| What is love? | Compassion and loving-kindness, without clinging | The eternal life of the Trinity, given to creatures |
| Who saves? | Your own practice (Theravada); Amida's vow (Pure Land) | God, through Jesus Christ, in history |
| What is the ending? | Nirvana: the end of craving and rebirth | Resurrection, the person kept, seeing God face to face |
Argument structure
| Premise | Notes | |
|---|---|---|
| P1 | Suffering is real, but its root is deeper than craving. Christianity locates it in a heart turned from God, which explains both the craving and the sense that things are not as they should be. | Diagnostic |
| P2 | Suffering, craving and liberation all require a self. Not-self cannot say who suffers, who is reborn, or who is freed; the Christian person can. | Personhood |
| P3 | A world of dependent things needs a ground that is not dependent. Buddhism sets the question aside; the Christian God answers it. | Cosmological |
| P4 | Love is not craving. Christian love is the fulfillment of persons, not attachment to be released; it is grounded in a God who is love. | Relational |
| P5 | Grace needs a Savior in history. Pure Land comes closest; Christ supplies a grace with a date, a place, a death and a resurrection. | Historical and soteriological |
| P6 | The Christian ending is better for the person. Resurrection keeps and heals the self; nirvana ends the self that was never there. | Eschatological |
| C | On the questions where they differ, the Christian God explains the world better and offers the person more. Buddhism sees suffering clearly; Christianity sees its cause and its cure. |
Master objections to the whole argument
MO1: "Buddhism is a practice, not a set of beliefs, so it cannot be compared doctrine to doctrine."
- The practice is built on claims: rebirth, karma, not-self, the possibility of nirvana. If those claims are false, the practice loses its point. The Buddha himself taught "right view" as the first step of the path.
MO2: "Theravada, Zen, Tibetan and Pure Land Buddhism are too different to treat together."
- The page distinguishes them where it matters, especially on self-effort and grace. The shared core (the Four Noble Truths, not-self, rebirth, no creator) is common to the main branches.
MO3: "The Buddha was wise to set metaphysics aside. Christianity speculates."
- The Buddha did not set all metaphysics aside: rebirth and karma are metaphysical claims. He set aside some questions while assuming answers to others. Christianity's claims rest on public history, a man crucified under Pontius Pilate and seen alive afterward. See Minimal Facts Argument.
MO4: "Christian love is attachment, and attachment causes suffering."
- Love does cost, which is why grief is real. But a life protected from grief by not loving is smaller, not freer. Jesus wept at His friend's tomb (John 11:35) and then raised him. See Premise 4.
Premise 1, Suffering is real, but its root is deeper than craving
Affirmative case
- The Buddha's diagnosis is serious and partly right: disordered desire produces much suffering.
- Scripture says the same: "each man is tempted, when he is drawn away by his own lust, and enticed. Then the lust, when it hath conceived, beareth sin: and the sin, when it is fullgrown, bringeth forth death" (James 1:14-15, ASV).
- But the Bible traces the desire deeper, to the heart: "from within, out of the heart of men, evil thoughts proceed" (Mark 7:21, ASV); "The heart is deceitful above all things, and it is exceedingly corrupt: who can know it?" (Jeremiah 17:9, ASV). See Sin and Original Sin.
- It also explains why suffering feels wrong. On Christianity the world was made "very good" (Genesis 1:31, ASV) and now "groaneth and travaileth in pain together" (Romans 8:22, ASV), awaiting redemption. Suffering is not the basic nature of existence; it is a wound in a good creation.
- A wound can be healed. A basic feature of existence can only be escaped.
Anticipated objections
- "Sin is a guilt-based Western idea. Ignorance is the real problem."
Rebuttals
- Ignorance explains some suffering, but not the person who knows the right thing and does the wrong one. Paul describes exactly that: "Wretched man that I am! who shall deliver me out of the body of this death?" (Romans 7:24, ASV). The need is not only insight but rescue, and his answer is a person: "I thank God through Jesus Christ our Lord" (Romans 7:25, ASV).
Premise 2, Suffering, craving and liberation all require a self
Affirmative case
- The Buddha's not-self teaching examines each part of a person and finds no permanent self in any of them.
- Nagasena's chariot simile in the Milindapanha makes the point: "chariot" is a name for parts in relation, not a further thing, and so is "Nagasena."
- But suffering is always someone's suffering. Craving is someone's craving. Liberation is someone's liberation. If no one is there, the Four Noble Truths have no subject.
- Rebirth sharpens the problem. If no self passes from one life to the next, in what sense is the one reborn the same one who did the deeds? Buddhist teachers answer with continuity, like a flame lit from another flame. But a new flame does not deserve the old flame's karma.
- Christianity says the self is real and given: "Jehovah God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul" (Genesis 2:7, ASV). See Soul, Imago Dei and Substance Dualism.
Anticipated objections
- "Not-self does not deny the conventional person, only a permanent, unchanging essence."
Rebuttals
- That is a fair statement of the doctrine, and many Buddhists put it that way. But it moves the problem rather than solving it. Either there is something that continues and is responsible, which functions as a self, or there is not, and karma and liberation lose their bearer. Christianity can affirm that the self changes and grows while remaining the same person, because the self is held in being by God and known by Him (Psalm 139:1).
Premise 3, A world of dependent things needs a ground that is not dependent
Affirmative case
- Dependent origination says every phenomenon depends on other phenomena.
- A chain of dependent things, however long, is still dependent as a whole. It does not explain why there is a chain at all.
- Buddhism leaves this open. The texts say no first beginning of samsara is discernible (Samyutta Nikaya 15), and the Buddha set aside whether the world is eternal (Majjhima Nikaya 63).
- Yet the tradition itself points beyond the chain. Udana 8.3 speaks of an unborn, unbecome, unmade, unconditioned, without which there would be no escape from the conditioned.
- The Christian God is that unconditioned reality, and He is personal: "The God that made the world and all things therein... he himself giveth to all life, and breath, and all things" (Acts 17:24-25, ASV). See Contingency Argument and Kalam Cosmological Argument.
Anticipated objections
- "Asking for a first cause is the kind of speculation the parable of the arrow warns against."
Rebuttals
- The parable is sound advice when a man is dying. But whether there is a God is not idle curiosity; it decides whether the arrow can be pulled at all, and by whom. If there is a Creator, the most important fact about the wounded man is that Someone made him and wants him healed.
Premise 4, Love is not craving
Affirmative case
- Buddhism rightly honors compassion (karuna) and loving-kindness (metta). The Metta Sutta (Sutta Nipata 1.8) asks the disciple to cherish all beings as a mother protects her only child. Christians should admire this.
- But Buddhism also treats attachment as a cause of suffering. The Dhammapada (around verse 212, in the chapter on the dear) teaches that grief and fear arise from what is held dear.
- Christianity agrees that self-seeking love is corrupt: love "seeketh not its own" (1 Corinthians 13:5, ASV). But it does not ask us to love without holding the beloved dear. It asks us to love as God loves: "Even as the Father hath loved me, I also have loved you: abide ye in my love" (John 15:9, ASV).
- That love is grounded in God Himself, who is love as Father, Son and Spirit before the world (John 17:24). See Trinity and Argument from Love.
- And it is permanent, because the persons are: "neither death, nor life... shall be able to separate us from the love of God, which is in Christ Jesus our Lord" (Romans 8:38-39, ASV).
Anticipated objections
- "Love that clings will grieve. Better to love without attachment."
Rebuttals
- Grief is the cost of love in a world with death. Christianity does not remove the cost by removing the love; it removes the death. "Blessed are they that mourn: for they shall be comforted" (Matthew 5:4, ASV). Jesus wept at Lazarus's tomb (John 11:35), and then called him out of it.
Premise 5, Grace needs a Savior in history
Affirmative case
- In Theravada the path is walked by one's own effort. The tradition's account of the Buddha's last words urges disciples to strive on with diligence (Digha Nikaya 16).
- Pure Land Buddhism takes a different road. Amida (Amitabha) is said to have vowed, as the bodhisattva Dharmakara in an unimaginably distant age, that all who sincerely entrust themselves to him and call his name would be born in his Pure Land (the eighteenth vow of the Larger Sukhavativyuha Sutra).
- Shinran (13th-century Japan) pressed this to its limit: liberation is entirely Amida's other-power, not self-power. The Tannisho (ch. 3) records his saying that if even a good person is born in the Pure Land, how much more an evil person.
- This is the nearest thing to grace in the Buddhist world, and Christians should recognize the resemblance. Karl Barth did, and concluded that the decisive difference lies in the name of Jesus Christ.
- The difference is history. Amida's vow is placed in a mythic past, not in a datable life. Christ's grace was won under Pontius Pilate, in a known place and time: "Christ died for our sins according to the scriptures... he was buried... he hath been raised on the third day" (1 Corinthians 15:3-4, ASV). See Resurrection of Jesus and Atonement.
- And Christian grace deals with guilt, not only with bondage: "being justified freely by his grace through the redemption that is in Christ Jesus" (Romans 3:24, ASV). See Grace vs Law.
Anticipated objections
- "Pure Land teachers do not need Amida to be historical; the vow expresses the truth of compassion."
Rebuttals
- Then the grace is a symbol of compassion, not an act of it. A symbol cannot pay a debt or raise the dead. The Christian claim is that God's compassion did something on a particular day: "God commendeth his own love toward us, in that, while we were yet sinners, Christ died for us" (Romans 5:8, ASV).
Premise 6, The Christian ending is better for the person
Affirmative case
- Nirvana is the end of craving and of rebirth. Buddhists rightly insist it is not mere annihilation, but the Buddha declined to say whether an awakened one exists after death (Majjhima Nikaya 63), and on not-self there was never a permanent self to continue.
- The Christian ending keeps the person and heals them: "we shall be like him; for we shall see him even as he is" (1 John 3:2, ASV), with a raised body (1 Corinthians 15:42-44).
- The risen Jesus made the point Himself: "See my hands and my feet, that it is I myself" (Luke 24:39, ASV).
- The end of suffering is promised, not by the end of persons, but by the presence of God: "he shall wipe away every tear from their eyes; and death shall be no more; neither shall there be mourning, nor crying, nor pain, any more" (Revelation 21:4, ASV).
- See World Religions Compared by Their Ultimate Ending and Heaven.
Anticipated objections
- "Wanting the self to continue is exactly the craving that keeps you bound."
Rebuttals
- Christianity also calls for losing self-centered life: "whosoever shall lose his life for my sake and the gospel's shall save it" (Mark 8:35, ASV). But what is lost is selfishness, and what is saved is the self. Paul could say "it is no longer I that live, but Christ living in me" (Galatians 2:20, ASV) and in the same breath "the Son of God, who loved me, and gave himself up for me." The "me" is still there, and it is loved.
Scripture on suffering and the Savior
The Bible meets the Buddha's first truth head on, and then answers it with a person:
- Life under the sun is fragile. "Vanity of vanities, saith the Preacher; vanity of vanities, all is vanity" (Ecclesiastes 1:2, ASV).
- Creation groans, but in labor, not in vain. "The whole creation groaneth and travaileth in pain together until now" (Romans 8:22, ASV).
- God entered the suffering. "Surely he hath borne our griefs, and carried our sorrows" (Isaiah 53:4, ASV).
- He offers rest, not escape. "Come unto me, all ye that labor and are heavy laden, and I will give you rest" (Matthew 11:28, ASV).
- He frees from the fear of death. Christ shared our flesh "that through death he might bring to nought him that had the power of death... and might deliver all them who through fear of death were all their lifetime subject to bondage" (Hebrews 2:14-15, ASV).
- The end is presence. "Behold, the tabernacle of God is with men, and he shall dwell with them" (Revelation 21:3, ASV).
Live-cite kit
Scripture:
- Ecclesiastes 1:2, "vanity of vanities, all is vanity" (ASV).
- James 1:14-15, desire conceives sin, sin brings forth death (ASV).
- Matthew 11:28, "Come unto me... and I will give you rest" (ASV).
- Romans 5:8, "while we were yet sinners, Christ died for us" (ASV).
- Luke 24:39, "See my hands and my feet, that it is I myself" (ASV).
- Revelation 21:4, "death shall be no more" (ASV).
Primary and scholarly:
- Samyutta Nikaya 56.11: the first sermon and the Four Noble Truths.
- Samyutta Nikaya 22.59: not-self, taught through the five aggregates.
- Majjhima Nikaya 63: the poisoned arrow and the undeclared questions.
- Udana 8.3: the unborn, unbecome, unmade, unconditioned.
- Digha Nikaya 1: Brahma's mistaken belief that he is creator.
- Milindapanha: Nagasena's chariot simile for the self.
- Shinran, Tannisho ch. 3: even the evil person is embraced by Amida's vow.
- Karl Barth, Church Dogmatics I/2, section 17: Pure Land as the closest parallel to Reformation grace; the difference is the name of Jesus Christ.
- Ravi Zacharias, The Lotus and the Cross: Jesus Talks with Buddha (2001): an imagined dialogue on suffering, self and grace.
Aphorisms:
- "The Buddha showed a way out of suffering. Jesus walked into it and came out alive."
- "If there is no self, who is set free?"
- "Christianity does not cure grief by ending love. It cures it by ending death."
- "A symbol of compassion cannot pay a debt."
- "Nirvana blows the flame out. Resurrection lights it forever."
Tactical notes
- Find out which Buddhism. A Western meditator, a Theravada monk, a Tibetan practitioner and a Japanese Pure Land believer hold very different views. Ask: "What do you hope happens to you in the end?"
- Start with agreement. Suffering, impermanence and the danger of craving are shared ground. Say so honestly.
- Ask the self question gently. "If there is no you, who is meditating, and who will be free?" is a real question, not a trick, and serious Buddhists have thought hard about it.
- Press the Creator question. The Buddha set it aside, but it does not go away. "Why is there a world of suffering beings at all?"
- With Pure Land believers, talk grace. They already trust another's power to save. Point to the Savior whose saving act happened in history.
- Offer the better ending. Not the blowing out of a flame, but a Father's house: "I come again, and will receive you unto myself" (John 14:3, ASV).
See also
- World Religions Compared by Their Ultimate Ending, nirvana and every other ending side by side
- Christ vs Other Religion-Founders, Jesus compared with the Buddha and others
- Karma, the impersonal law of consequences compared with grace
- Reincarnation, rebirth compared with resurrection
- Hinduism vs the Christian God, the companion comparison with Advaita and the devotional schools
- Pantheism vs the Christian God, the comparison with God-is-everything views
- Contingency Argument, why dependent things need an independent ground
- Argument from Love, why love points to a personal God
- Problem of Evil, suffering in a world made by a good God
- Resurrection of Jesus, the historical event at the center of Christian hope
- Trinity, love eternal within God
- Soul, the Christian view of the self
Common questions this page answers
Q: Does Buddhism believe in God?
Not in the Christian sense. Early Buddhist texts accept gods but place them inside the round of rebirth, mortal like everyone else, and they portray Brahma as mistaken in thinking he created the world. Mahayana Buddhists revere celestial buddhas and bodhisattvas, but Buddhism does not teach a personal Creator who made the world from nothing.
Q: What is the difference between Buddhism and Christianity?
Buddhism teaches that suffering comes from craving, that there is no permanent self, and that the goal is nirvana, the end of craving and rebirth, reached mainly by one's own practice. Christianity teaches that a personal God made a good world, that suffering stems from a heart turned from God, and that Jesus saves by grace, leading to the resurrection of the whole person.
Q: Is nirvana the same as heaven?
No. Nirvana is the extinction of craving and the end of rebirth; the Buddha declined to say whether an awakened one exists after death. Heaven in Christianity is life with God, ending in bodily resurrection, where the person is kept and healed and sees God face to face (Revelation 22:4).
Q: What does "no-self" (anatta) mean, and why does it matter?
Anatta is the teaching that nothing in a person, body, feelings, perceptions, mental formations or consciousness, is a permanent self. It matters because suffering, karma and liberation all seem to need someone who suffers, acts and is freed. Christianity holds that each person is a real self, made in God's image and known by Him.
Q: Is Pure Land Buddhism like Christian grace?
It is the closest Buddhist parallel. Shinran taught that birth in the Pure Land comes entirely through Amida Buddha's vow, not through one's own effort. The difference is that Amida's vow is set in a mythic past, while Christian grace rests on a historical death and resurrection that deals with guilt as well as bondage.
Q: Was Jesus a Buddhist teacher or a bodhisattva?
No. Jesus did not teach release from desire or the denial of the self. He claimed authority to forgive sins, called God His Father, and said He came "to give his life a ransom for many" (Mark 10:45, ASV). His followers proclaimed not a path to nirvana but His bodily resurrection.