Before revision: In the Indian understanding, self-realization is liberating knowledge of the true self, either as the permanent undying Purusha or witness-consciousness, which is atman (essence), or as the absence (sunyata) of such a permanent Self .
After revision: In the Indian understanding, self-realization is liberating knowledge of the true self, either as the permanent undying Purusha or witness-consciousness, which is atman (essence), or as the absence (sunyata) of such a permanent self .