Only through Soulcentric reasoning, one will be able to cross the domain of the form, time, and space.+

Yoga Vasistha says: ~ Self-knowledge or knowledge of truth is not had by resorting to a Guru (preceptor) nor by the study of scripture, nor by good works: it is attained only by means of inquiry inspired by the company of wise (Gnani). One’s inner light alone is the means, naught else. When this inner light is kept alive, it is not affected by the darkness of inertia. 

There is no need to condemn Gurus, but there is a need to highlight how they become an obstacle in realizing the ultimate truth or Brahman.

Swami Vivekananda said: ~   “You have to grow from the inside out. None can teach you, none can make you spiritual. There is no other teacher, but your own Soul.”

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

A Guru is needed for the religious and the yogic path.  There is no need for a Guru to acquire Self-knowledge or Brahma Gnana or Atma Gnana. 

Sage Sankara himself had often said that his philosophy 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 for this idea of divine causality, and can, therefore, dispense with Sruti and arrive at the truth of Non-Dualism by pure reason. 

Only through Soulcentric reasoning, one will be able to cross the domain of the form, time, and space.

Ashtavakra Gita: ~ It is not the absence of Buddhi (reason) that can grasp Advaita but the man who possesses the highest intellect. Brains are necessary. Such a man, by merely hearing the truth mentioned will know it. (Page~ 224).

Brahman (God in truth)

The Soul is the Self. The Soul is present in the form of consciousness.  Consciousness is the ultimate truth or Brahman.  The Ultimate Truth or Brahman is God. Realize consciousness as the ultimate truth or Brahman. Consciousness is existence, knowledge and Absolute awareness. Consciousness is non-dual and infinite, eternal and ‘one’ and which fills all that exists.

Self-realization is the realization of the Advaitic truth.  There is nothing more to be realized, other than the truth, which is beyond the form, time, and space.

After acquiring the Self-knowledge or Brahma Gnana Knowledge or Atma Gnana nothing needs to be acquired. Self-knowledge or Brahma Gnana Knowledge or Atma Gnana frees the Soul, the innermost self from the dualistic illusion.  When the Soul is free from the dualistic illusion then it is free from experiencing the illusory birth, life, death, and the world as a reality. 

The one who possesses the highest intellect can grasp the Advaitic truth, by merely hearing the truth mentioned will know it.

Bhagavad Gita: ~ Reason as a means to reality. (Chap.18 verse 37)

In chap. 10 of in Bhagavad Gita, Krishna says: ~ I cannot save you, but I can give you Buddhi (reason). (chap. 10)

In chap. 10 of in Bhagavad Gita, Krishna says: ~ "I have given you the most secret teaching, now reflect over it all" Krishna plainly says reflect, think. (Verse 63 of Chap. 18)

Mundaka Upanishad says: ~  Both states are harmful and take you away from the path of inquiry into truth. (Page 234)

The reasoning is interpretable in two ways. The egocentric interpretation is to apply it only to the practical purpose (waking experience). The Soulcentric interpretation is to apply it to the three states. The latter leads to the final settlement of the problems because it takes all data into consideration. :~Santthosh Kumaar