Indian Atomism

This article surveys the development of atomic theories in Indian philosophy with particular attention to the distinctive features of Jaina atomism. It explains that in Indian thought the physical universe is composed of indivisible ultimate particles known as paramāṇus. Jaina metaphysics accepts the permanence‑in‑change (parināmi‑nityatā) of these atoms and rejects the notion of absolutely immutable atoms found in the Vaiśeṣika tradition. According to the Jainas, each atom retains its essential nature but undergoes transformations that give rise to the diverse forms of matter. When atoms combine they form skandhas, or molecules, and the qualities and modes (guṇa and paryāya) of these composites explain the observable properties of physical objects. The author compares Jaina atomism with the Nyāya‑Vaiśeṣika and Sāṃkhya schools. The Nyāya‑Vaiśeṣika view identifies a paramāṇu as one‑sixth of a dust mote seen in a sunbeam and treats all atoms as uniform and persistent. By contrast, Jain philosophers hold that atoms are infinitely numerous and that countless atoms and molecules can coexist at a single point of space due to their capacity for contraction (saṃkoca). This notion leads to the doctrine of ananta‑paramāṇu‑vāda, which posits an infinite plurality of ultimate atoms. Unlike the Sāṃkhya system, which derives all material phenomena from a single unmanifest prakṛti, the Jainas regard atoms as discrete entities that can generate the full diversity of material forms through combination and dissociation. The article further observes that Jaina atomism integrates with the religion’s broader metaphysics. The infinite atoms fill the cosmic universe (loka‑ākāśa) and are without beginning or end. They are extremely subtle and indivisible; each has no length, breadth or depth and thus cannot be subdivided. Because of their transformability, atoms can assume different qualities such as earth, water, fire and air. This dynamic conception of matter underlies Jain cosmology and supports the belief that the universe is without a creator: natural processes of combination and transformation suffice to explain the cosmos. The article concludes by noting that while Jaina atomism shares affinities with other Indian schools, its emphasis on infinite, contractible atoms and permanent change marks it as a unique philosophical contribution. This distinctive atomic theory parallels the Jain doctrine of an infinitely plural universe and reinforces the religion’s commitment to non‑absolutism (anekāntavāda), which holds that reality comprises innumerable perspectives and modes.

Summary reviewed by a volunteer editor.