Turiya is the state of Eternal Witness, which is the substrate of the other three consciousness states.nKaivalya or ‘separateness’ is an individual's consciousness achieved by realising that ‘Purusha’, i.e., self or soul, is separate from matter or ‘Prakriti’. Purusha is constant while Prakriti is changing.nA person needs to be well-versed with self-knowledge or Aatma Gyan to attain liberation. Unlike body, mind or consciousness, Aatma is eternal, imperishable and beyond time.