Sankara's and Buddhist methodology: epistemic, not ontological negation
Sankara's method of 'neti, neti' (not this, not this) is also often misunderstood. In it the sheaths or upadhis are supposedly rejected one by one as 'not-self' in order to reach the Self. Guadapada, his predecessor, had often, in fact, as previously mentioned, been accused of being a 'crypto-Buddhist' as the dialectic used by him was nearly identical to that of the Madhyamikas. However, the doctrine of the five sheaths in the Tittireya Upanishad, which forms part of the material which Sankara drew from, never once mentioned negating a sheath as not real or as not-self. Rather, the method of analysis there was wholistic, in which one successively realized each sheath as the Self, incorporating each in turn within the other, until nothing was known apart from the bliss of the Self. Sankara used a provisional negation, an epistemological method of negation, yes, as a first stage to find the self apart from the world, which some have interpreted as ontological negation, looking for an essence apart from that which was not real. But, in non-dual truth, there is no such separated essence per se, as nothing is not-real or known apart from the Self. The Self is the negation of a negation, realized in the second stage of the Vedantic approach where the world is known as Brahman. That is, Sankara would use 'neti neti' to strip away one's attachment to everything perceivable; then, when one had become so detached, he would ask one to reintroduce the negated elements into the one Self. "Brahman is real, the jiva is mithya (neither real or unreal, that is, apparent or relatively real), the jiva is Brahman' is how the formula actually read. The emphasis on 'neti neti' was more on negating the limits on the Self rather than trying to negate or eliminate the world. For even after realization of the Self, the sage would still see the world of duality like other men, only as not apart from the Self and this not objectively real in itself. Sometimes Ramana Maharshi, for instance, would say things that implied that for the sage whose jiva-hood was gone there was no world, thus misleading some people into an incorrect view of non-dualism.