The Wheel of Life (Bhavachakra) Explained

By Tim Yu · Updated 2026-06-08

The Wheel of Life — the Bhavachakra, or “wheel of becoming” — is Buddhism’s single most complete picture of existence: a great diagram that gathers, into one turning circle, the causes of suffering, the realms of rebirth, and the mechanism that keeps the whole of saṃsāra revolving. Painted at the entrance of Tibetan temples for centuries, it is a teaching you can read at a glance and ponder for a lifetime — and it draws together nearly everything in Buddhist cosmology.

A wheel held by death

Encyclopædia Britannica describes the Bhavachakra as “a representation of the endless cycle of rebirths governed by the law of dependent origination” — shown as a great wheel “clutched by a monster,” which symbolizes impermanence. That fearsome figure gripping the entire wheel in its claws and jaws is traditionally identified as Yama, the lord of death: a stark reminder that all of conditioned existence is held fast in the grip of impermanence and death. Nothing within the wheel escapes him.

Read from the center outward, the image has four great parts.

Where the wheel comes from

The Wheel of Life is an ancient teaching aid, and tradition traces it to the Buddha himself. According to the Divyāvadāna, a collection of early Buddhist narratives, the Buddha designed the first such wheel as a gift to a king, Rudrāyaṇa, so that a picture might convey what words alone could not. More tellingly, the early sources record that he instructed the wheel be painted at the entrance gate of monasteries, with a monk stationed to explain it — so that even those who could not study the texts, the farmers and travellers passing by, might grasp at a glance the shape of their own predicament, and the way out of it.

That instruction is still followed. To this day the Bhavachakra is painted on the outer wall, beside the door, of Tibetan temples across the Himalayas — a teaching offered before one has even stepped inside, meeting every visitor with the whole of saṃsāra, and the promise of freedom from it, in a single image.

The hub: the three poisons

At the very center of the wheel are its driving forces — the three poisons, the root causes of all suffering, shown as three animals locked in a circle, each biting the tail of the next. Britannica names them: a red dove (or cockerel) for passion and greed, a green snake for anger and hatred, and a black pig for ignorance and delusion. They chase one another endlessly, because each feeds the others — and from this small, spinning hub of greed, hatred, and delusion, the whole vast wheel turns.

The spokes: the six realms

Radiating out from the hub, the spokes divide the wheel into the realms of rebirth — “five (later, six) sections,” as Britannica notes — depicting the states into which a being can be reborn: the realms of the gods, the titans (asuras), humans, animals, hungry ghosts, and the hells. This is the familiar scheme of the six realms, here set into the wheel to show that every one of them — heaven and hell alike — is inside saṃsāra, turning with everything else.

The rim: the twelve links

Around the outer rim runs the twelve links (nidānas) of dependent origination, shown in a series of small allegorical scenes. Britannica lists them: ignorance, karma-formations, consciousness, mind-and-body, the six senses, contact, sensation, craving, grasping, becoming, birth, and finally old-age-and-death. This outer ring is the mechanism of the whole wheel — the step-by-step causal chain by which, beginning in ignorance and running through craving and grasping, one moment of existence gives rise to the next, and suffering arises link by conditioned link.

The way out

For all its depiction of bondage, the Wheel of Life is, at heart, a liberating image — because to see clearly how the wheel turns is to see how it can be stopped. In many traditional paintings the Buddha is shown standing outside the wheel, pointing beyond it: a figure who has stepped free of the whole turning round, and who points the way out for everyone else.

That is the wheel’s final message. The three poisons at the hub can be uprooted; the twelve links can be broken; and when they are, the wheel — for that being — stops. The Bhavachakra shows the prison in order to show the door. The door is the Eightfold Path, and what lies beyond the wheel is nirvana. (For the cosmos the wheel maps, see Buddhist cosmology; unfamiliar terms are in the glossary.)