Jainism is one of the oldest surviving religious traditions of the Indian subcontinent, older than Buddhism, contemporary with the pre-Upanishadic layers of Hinduism. Its cosmology is austere, precise, and unusual: every being is an immortal soul (jiva) weighted down by karma understood as a physical substance — subtle matter that literally sticks to the soul and obscures its natural qualities of infinite knowledge, infinite perception, infinite bliss, and infinite energy. The project of every life is to burn this karma off.
The four gatis, or realms of existence, form the Jain map of possibility. Manushya-gati: human birth, the only realm from which liberation is directly attainable. Deva-gati: heavenly realms, sixteen in the Kalpas and many more beyond, where the rewards of merit are enjoyed but the work of purification cannot be continued. Tiryanch-gati: the animal and plant realms, where consciousness is constrained. Naraka-gati: the seven hells, graded by coldness, where the consequences of specific destructive actions are burned off.
Liberation is moksha — in Jain terminology, kevala-jnana followed by the final release of the soul from the body at death. When the last particle of karma has been burned off, the jiva becomes a Siddha and rises to the Siddhashila at the top of the universe, above all the heavens, where it remains forever in its pure state: omniscient, omnipresent, at rest, never returning. Unlike the Buddhist nirvana, the Jain Siddha is emphatically existent; it has simply realized what it always was.
The path is ethics applied to the atomic level. The central vow is ahimsa — non-harming — taken to extraordinary lengths: Jain monks and nuns sweep the path in front of them to avoid stepping on insects, strain their drinking water, refrain from eating root vegetables (uprooting the plant kills it), and ultimately may undertake sallekhana, the ritual fast unto death, in which a lifetime's asceticism culminates in the voluntary and mindful cessation of food, allowing the body to die slowly while the mind remains on the soul. Sallekhana is distinguished from suicide by its deliberateness, its communal oversight, and its orientation: it is a final purification, not a despair.
What distinguishes Jain cosmology from other Indian traditions is the precision. Karma is not metaphor; it is described as 148 distinct types with specific effects. The universe is not created or destroyed; it is eternal, endless, and fully populated by an infinite number of souls in every possible state of bondage. There is no creator god. The tirthankaras — the twenty-four "ford-makers," of whom Mahavira was the twenty-fourth — are not deities; they are liberated souls who, during their final lives, taught the way.
The path is long. Most souls will never attain liberation in this cosmic age. But time is vast in Jain cosmology, and every jiva will eventually, after incalculable cycles, reach the Siddhashila. The tradition is patient in a way few others are.
