All the Advaitic Gurus of the east and the west are based on the dualistic perspective or orthodox perspective.+

Gurus themselves dwelling in darkness preach their way is the only way and the followers of the gurus follow the dualistic path like the blind led by the blind. 

The Guru is useless so long as the ultimate truth is unknown, and the Guru is equally useless when the ultimate truth or Brahman has already been known.

All the Advaitic Gurus of the East and the West are based on the dualistic perspective or orthodox perspective. 

Dualistic knowledge is egocentric knowledge. All egocentric Advaita or nonduality is based on the imagination. All the dualistic Advaita will not help to cross the domain of form, time, and space.

The egocentric knowledge keeps the Soul in the intoxication of the ‘I’. The ‘I’ hides the whole truth.  

The Gurus and the teachers of nonduality of the East and West are stuck up with their own accepted truth gathered from here and there and  Their egoic attitude blocks them by realizing the Advaita is hidden by the data, which is present in the form of the ‘I’.

Mundaka Upanishads: ~ So-called spiritual pundits and learned are called children because a child takes whatever it thinks as truth. The question never occurs to children “Is what I have seen or thought really the truth?" (P.334 line 9)

Scriptures are not needed in pursuit of truth. Even the Upanishads and the Advaitic Sages declare the same.

The ultimate truth has to be ascertained without the scriptures by realizing the Self is neither the waking entity nor the dream entity but the Self is formless Soul which is present in the form of consciousness. 

In the realm of Advaitic truth, form, time, and space are created out of single stuff. That single stuff is consciousness. 

Realizing the single stuff as the ultimate truth is Self-realization or truth realization. To realize this truth there is no need for the scriptures. 

The ultimate truth has to be realized first then only it is possible to know what the scriptures are saying.

That is why Sage Sankara says: ~ VC 56- Neither by Yoga, nor by Sankhya, nor by good work, nor by learning, but by the realization of one's identity with Brahman is Liberation possible, and by no other means.

58. Loud speech consisting of a shower of words, the skill in expounding the Scriptures, and likewise erudition - these merely bring on a little personal enjoyment to the scholar but are no good for Liberation.

59. The study of the Scriptures is useless so long as the highest Truth is unknown, and it is equally useless when the highest Truth has already been known.

60. The Scriptures consisting of many words are a dense forest that merely causes the mind to ramble. Hence men of wisdom should earnestly set about knowing the true nature of the Self.

Advaita is the nature of the Soul. Advaita is second to none. Advaita is universal wisdom revealed on its own to all the serious and sincere seekers of truth. 

Sage Sankara in Viveka Chudamani (2), states that the Atman (i.e., a Gnani) "bears no outward mark of a holy man" (Stanza 539).

It means the Gurus, Swamis, and Yogis who identify themselves as holy people are not Gnanis.

Those who are seeking truth need not follow any Guru or any teaching. Those Gurus and Yogis who make them make the seeker sentimentally get involved in the name of love are playing with the feelings of the seeker.

Emotionally getting stuck with the Gurus or yogis leads to hallucination, emotionally getting involved with the Guru will not yield truth. If you are the seeker of truth then you must know the Gurus and Yogis are not Gnanis. If you want to tread the path of wisdom you must be free from the Gurudom. : ~ Santthosh Kumaar