Sage Sankara founded his Advaita wisdom either on reason independent of Shruti or on Shruti confirmed by reason."+

Sage Sankara says:~ How can the talk of diversity, dvaita, apply to the Supreme Reality which is one and homogeneous, Advaita? Who has ever observed diversity, dvaita, in the unmixed bliss of the state of profound sleep?

Existence is nondual. Nonduality cannot be described by means of words, for all uses of language fail to express it. Nonduality is sought to be indicated mentally negation of duality (all attributes and characteristics).

Sage Sankara founded his Advaita wisdom either on reason independent of Sruti or on Sruti confirmed by reason."

Sage Sankara's commentary on the Manduka Upanishad, II, 1: This (duality) is borne out by the Srutis ... But it is possible also to show the unreality of the object world even from pure reasoning, and this second chapter is undertaken for that purpose.

Sage Sankara himself had often said that his wisdom was based on Sruti, or revealed scripture. This may be because Sage Sankara addressed the ordinary man, who finds security in the idea of causality and thus in the idea of God—and Revelation is indispensable to prove the latter. He believed that those of superior intelligence, have no need of this idea of divine causality, and can, therefore, dispense with Sruti and arrive at the truth of Non-Dualism by pure reason.

Those who lack the intelligence to discriminate between formless witness (subject) and three states (object) will not be able to grasp what is real and what is unreal. Both subject and object are consciousness, not subject alone.

The truth can never change. The nature of the truth is can never be changed under any circumstances. It may be misrepresented. It must apply to the whole of existence, to the whole of the universe. It is in the object (three states) alone that one has all changes, as deeper analysis points out.

The subject (witness) remains unchanged. The subject (formless witness), as such, remains immortal. It can never die, for it never changes. The body and the world are an object and go, but the subject or knower of the body and the universe can never go.

Seeker has to take this principle as his guiding thread and non-dual truth becomes easy to grasp. The formless witness can never be subject to the changes of the object; it is unchanged. The mistake usually made is that subject becomes an object, or that object is the subject.

If one wants to have an absence of contradictions, the absence of duality, there must be one entity, one being. If one has experience which is an object (mind), there is a contradiction between subject and object, for "mind” is an object.

The duality is a reality from the standpoint of the false self (ego). The duality is merely an illusion on the base of the real Self, which is consciousness.

This understanding comes only to the serious seeker, who has a real urge to know the ultimate truth, which is beyond all the teachings and teachers. There is neither teaching nor a teacher, nor student in the realm of truth.

Sage Goudapada quotes from the Upanishads: ~ "There's no plurality here"; "The Soul through its powers appears to be many"; "those who are attached to the creation or production or origination go to utter darkness"; "the unborn is never reborn, for what can produce it?”. :~Santthosh Kumaar