Jain philosophy is the oldest Indian philosophy that separates body (matter) from the soul (consciousness) completely. Jain philosophy deals with reality, cosmology, epistemology (study of knowledge) and Vitalism. The concept of non-injury or ahiṃsā lies at the core of Jain philosophy. Jain philosophy attempts to explain the rationale of being and existence, the nature of the Universe and its constituents, the nature of bondage and the means to achieve liberation.