The Six Dravyas: Eternal Substances of the Cosmos

Jain philosophy offers one of the most systematic ontologies of classical India. It holds that all that exists can be resolved into six fundamental substances, the sad dravya. These are jiva the soul, pudgala matter, dharma the medium of motion, adharma the medium of rest, akasha space, and kala time. Every phenomenon in the universe, from the flight of a bird to the passing of an age, is understood as the play of these six realities. None was ever created and none can ever be destroyed; they are eternal in their substance while endlessly changing in their modes.

A dravya is defined in the Tattvartha Sutra as that which possesses qualities, guna, and modes, paryaya. The substance is the enduring substrate, its qualities are the permanent characteristics inseparable from it, and its modes are the momentary states it passes through. Thus every dravya is at once permanent and impermanent: permanent as substance and quality, impermanent as mode. This subtle doctrine allows Jainism to affirm real change without sacrificing the enduring reality of things, avoiding both the eternalism of some schools and the momentariness of others.

The first substance, jiva, is the conscious principle, marked by knowledge and perception. It is the only substance that is a knower. The remaining five are collectively ajiva, non-living, and among them only pudgala has physical form. The great division of the cosmos is therefore between the one kind of conscious substance and the many kinds of unconscious substance with which it interacts.

Each of the five ajiva substances performs a distinct cosmic function. Pudgala is matter, ranging from the ultimate atom to gross visible bodies, and it alone possesses color, taste, smell, and tangibility. Dharma is the pervasive, formless medium that makes motion possible, and adharma the medium that makes rest possible, the two functioning as the passive conditions without which neither movement nor stillness could occur. Akasha is space, that which gives room to all other substances to exist. Kala is time, the principle underlying continuity, sequence, and change.

Jainism further classifies the six according to whether they are extended bodies. Five of them, all except kala in the reckoning of most Jain thinkers, are called astikaya, extensive substances that occupy multiple space-points, pradesha, and so have a kind of body. Jiva, pudgala, dharma, adharma, and akasha are the five astikayas. Time, being without spatial extension in the view of the Svetambara tradition, is sometimes counted apart. Dharma and adharma each fill the entire cosmic space as single indivisible wholes; jivas and material atoms are innumerable and countless respectively; space alone is infinite in extent.

This scheme yields a striking cosmological picture. The inhabited universe, the lokakasha, is precisely that region pervaded by dharma and adharma. Beyond it lies infinite empty space, alokakasha, where no motion or rest is possible because those media are absent. A liberated soul rising at the moment of freedom travels upward only to the very boundary of the cosmos and there halts, for without the medium of motion it can go no further.

The doctrine of six substances is more than cosmology; it is the framework for the spiritual path. The soul, entangled through karmic matter with the non-living, must learn to discriminate its own nature from the other five substances. Right knowledge begins with grasping this map of reality: what the self is, what the not-self is, and how their separation leads at last to liberation. In the six dravyas the Jains find a complete and self-sufficient account of a universe that needs no creator to sustain it.