The neighbours and the doubters

An idea shows its shape most clearly at its borders, where it presses against ideas that are almost it and against ideas that deny it flatly. The doctrine of karma has three such borders, all of them Indian, and a treatise that stayed inside the Hindu schools would miss the definition those borders provide. Two neighbours share the concept of karma and build it differently. One doubter throws the whole thing out. Each tells us something about what the Hindu view is by showing what it is not committed to, and what it refuses to give up.

Jainism: karma you can weigh

The Jains took karma more literally than anyone, and the literalness is instructive.

For the Jain, karma is not a subtle disposition or an unseen potency. It is matter. Fine, physical particles, karma-pudgala, karmic dust, drawn to the soul by the heat of passionate or ignorant action and sticking to it, clouding its innate brightness the way soot clouds a lamp. The soul, the jiva, is by nature luminous and free; karma is the literal grime that weighs it down and keeps it bound in matter. This is karma made almost mechanical, a substance with mass and effect.

The consequence is a distinctive path to freedom. If karma is matter clinging to the soul, then liberation is a two-part cleaning. First, stop new particles from arriving, by restraint and non-violence; the Jains call this samvara. Then, burn off the particles already stuck, by austerity and asceticism; this is nirjara, the wearing-away. Jain liberation is achieved by scouring the soul clean of a physical load, which is why Jain practice puts such extraordinary weight on austerity and on ahimsa, non-harm, since violence is the stickiest karma of all.

Set beside the Hindu account, the contrast is exact. Where the Yoga school lodged karma in the mind as a subtle imprint, the Jain lodged it in the soul as subtle matter. Both agree the residue is real and must be dealt with. They disagree, fundamentally, on what kind of thing it is. The Hindu view, by comparison, is committed to karma as a moral and psychological reality rather than a physical one.

Buddhism: karma as intention, with no one to own it

The Buddha kept karma and rebirth and changed their engine, and the change is one of the most consequential moves in Indian thought.

Where the older ritual tradition had counted the correct performance of an act, the Buddha relocated karma to the will behind it. His formula is famous and blunt, preserved in the Anguttara Nikaya: it is intention, cetana, that I call karma; having intended, one acts by body, speech or mind. The moral weight sits in the volition, not in the outward deed. An act done without intention carries little karmic charge; the intention is the karma.

But the Buddha made a second move that severs his account from the Hindu one at the root. There is, he taught, no permanent self, no atman, standing behind the deeds to accumulate their fruit. This is anatta, not-self, and it produces a famous puzzle the Buddhists spent centuries refining: if there is no enduring self, who is reborn, and who reaps the karma? The Buddhist answer is that there is no static owner, only a stream of conditioned moments, each giving rise to the next, so that the being who reaps is neither the same as nor entirely different from the being who sowed, as one flame lights another. Karma runs on, but no unchanging soul carries it.

Here the border with Hinduism is at its sharpest, and the site’s article on the difference between Hinduism and Buddhism treats it in full. The Hindu traditions, almost all of them, hold to a real, enduring self, the atman, that transmigrates and bears the account across lives. The Buddha denied exactly that self. Two systems can share the machinery of karma and rebirth and yet disagree on the one question of whether anything permanent is being carried. What Hinduism will not surrender, and Buddhism will, is the traveller.

Charvaka: the doubter in the house

Then there is the school that threw it all out, and it is important that this school was Indian, ancient, and native to the tradition’s own house.

The Charvakas, also called Lokayata, were the materialists of classical India, and the site profiles them in its article on the Indian materialists. They denied karma. They denied rebirth. They denied the afterlife, the soul that survives death, and the whole apparatus of merit ripening across lifetimes. Consciousness, they held, arises from matter and ends with it, the way the power to intoxicate arises when grain is fermented and did not exist in the grain before. When the body dies, the person is simply gone. There is no ledger, because there is no one left to carry a balance forward. Only this life is real, and the sensible course is to live it well and expect nothing after.

That such a school existed, was named, was argued with rather than merely suppressed, and is counted in the tradition’s own surveys of thought, tells you something the outside reader rarely grasps. The doctrine of karma was never unopposed within Hinduism. It was held against a live, respected, internal denial. The tradition contains its own doubt.

What the borders reveal

Stand back from the three neighbours and the Hindu commitment comes into focus by contrast.

Against the Jain, the Hindu view holds that karma is a moral and mental reality, an imprint and a tendency, and not a physical substance to be scoured off. Against the Buddhist, it holds that there is a real, enduring self that carries the account, a traveller behind the travelling. And against the Charvaka, it holds that there is an account at all, that death is a passage rather than an ending, and that a deed done today can meet its doer in a life not yet begun. Three borders, three commitments, and together they map the Hindu doctrine more precisely than any positive definition could.

The survey posture the treatise has kept throughout applies here too. These schools are not staged in order to be defeated. They are the serious neighbours and the serious doubter, and the tradition’s own thinkers took them seriously. Naming their positions clearly is the point. Ruling them out is not.

The debates of the third movement close here, at the borders of the doctrine. The treatise has laid the law, opened the machinery, and let the schools argue over who runs it and whether it runs at all. What remains is the part of the reckoning that touches a human life most nearly, and the part the surveys pass over fastest. The debts we carry are not owed to the universe in the abstract. They are owed to particular people. The fourth movement asks why.