In Jainism, the existence of the jiva (the soul) is taken as a fundamental truth, established through a combination of direct experience, reasoning, and the teachings of enlightened beings.

Key points:

• What is a jiva? The jiva is the conscious, sentient principle that experiences, knows, desires, and acts. It is distinct from the body (material) and from non-sentient matter (ajiva).

• How do we know the soul exists?

- Direct experience (pratyaksha): We are aware that we experience thoughts, feelings, and perceptions from a center inside us that persists through changes in the body. This inner awareness points to an enduring, conscious self beyond physical parts. - Reasoned inference (anumana): When we observe that actions and experiences arise within a self and that the same person appears in different lives through rebirth, it supports the idea of an enduring agent (the soul) carrying karma and consciousness. - Testimony of liberated beings (aptaväkti): The teachings of Tirthankaras and perfected souls, who describe the nature of jiva and its bondage, provide authoritative guidance for those seeking a reliable understanding of the self.

• What independent proof does Jainism emphasize?

- The jiva is considered real and separate from the body and matter. Its qualities—consciousness, knowledge, perception, and volition—are intrinsic to its nature. The broad framework of Jain philosophy teaches that effort (through right conduct, discipline, and knowledge) can purify the soul and reveal its true nature, which is eternally pure and blissful when freed from karmic impurities.

• Do different Jain traditions speak differently about proof?

- The core conviction that jiva exists remains consistent across Digambar and Shwetambar traditions. They may differ in metaphysical details or soteriological emphases, but both regard the jiva as the true self responsible for experience and ethical action.

If you’d like, I can explain how Jain texts describe the jiva’s true nature (such as its intrinsic qualities and its bondage and release through karma) in simple terms, or outline how the fourfold path (right faith, right knowledge, right conduct) helps the soul realize its own nature.