Jesus said, "Know what is in front of your face, and what is hidden from you will be disclosed to you.
It means one has to know the world which confronts him confronts to realize his body and world are made of the same essence and that essence is Spirit (father).
Sage Sri, Sankara says: one must first know what is before him. If he cannot know that, what else can he know or understand? If he gives up the external world in his inquiry, he cannot get the whole truth.
Sage Sri, Sankara says:- VC-[63. Without causing the objective universe to vanish and without knowing the truth of the Self, how is one to achieve Liberation by the mere utterance of the word Brahman? — It would result merely in an effort of speech.
Jesus said, "Those who seek should not stop seeking until they find. When they find, they will be disturbed. When they are disturbed, they will marvel, and will reign over all. [And after they have reigned they will rest.]"
When the seeker indulges in deeper self-search becomes aware of the fact that, the experience of birth, life, death and the world are mere illusion created out of spirit, he will be in fear of losing their physical identity and the experience of the world which he dearly attached. But gradually his conviction grows about the innermost self the mid becomes still and rests in consciousness, the innermost self, which is God or Christ.
Modern man appears to have acquired admirable knowledge in various fields of investigation into the material world. Man has to accept the fact that, what has been acquired as scientific knowledge is but infinitesimal or superficial nothing considering to the mystery of his true existence. Above all, the acquired scientific knowledge and power does not quench his inner thirst, to know the spiritual realities of his true existence.
Kabir lived in Kashi, a place abounding in scholars. They believed it was enough to read, to accumulate knowledge from books. They were well versed in the Vedas, in the Upanishads and the other scriptures, and they looked upon Kabir as ignorant, as an illiterate man. In one sense, you can say Kabir was illiterate. If you consider a scholar as literate, as a well-educated man, then Kabir was definitely illiterate. But of what value is the scholar’s knowledge? A scholar will go on and on about the immortality of the soul, but when death approaches you will find him trembling and weeping and wailing. All this talk of immortality will crumble into nothingness because he has not known it.. --Osho -The Great Secret, ch. 2
Kabir knows. What he is talking about is not an explanation, what he is talking about is an experience – he is sharing his joy, he is sharing something that he has known, he is singing the song about the unsung. Remember it, that whenever Kabir talks about God it is not a belief; he knows it, it is his experience. He is talking out of his experience; hence he can be of immense help to you... --Osho --The Guest, ch. 1
Self-knowledge or Brahma Gnana or Atma Gnana has to be acquired in order to unfold the mystery of the mind, which is present in the form of the universe. The universe appears as waking or dream and it disappears as deep sleep.
When the ultimate truth is rightly known and one attains eternal life thereby. Through soul, the innermost self he gains strength and through its knowledge immortality.
Not by intellectual speculation but only by an awakening to the reality of his true existence he gets soulcentric vision. Soul, the innermost self’s nature is like state of deep sleep.
The waking experience is but the illusory an expressive imprint of the journey of the Soul or Spirit in its search for the knowledge of itself. The truth manifests in stages according to the receptivity of the aspirant. On the mental plane it manifests as self, which only the realized mind (Gnani) could observe it. On the physical plane it is as an advanced seeker or perfect man of knowledge. His very presence among men awakens them to the awareness of what they should and may become.
The Self knowledge or Brahma Gnana or Atma Gnana comes acquired through soul-centric reasoning, not by intuition, love and inspiration. It is the soul-centicity makes one transcend the dominion of egocentric intellect and gain the state of complete annihilation of the false self (waking entity) and false experience (waking), and it is the state that ends in the union with the true self, which is the soul or Atman or spirit or consciousness.
Soul-centric reasoning makes one remember the eternal true identity and making him feel less bound, in his onward march, by the trammels of physical limitation, till he reaches where he can raise himself to the realization of the ultimate truth or Brahman. When the self makes itself free from all the manifoldness of the experience of diversity, it is able to view and the judge the illusory experience of duality on the base of the its formless nondual true nature. Then only it is possible to realize there is no second thing other then the Ataman or consciousness in the whole experience of diversity. Thus one can conclude that, the whole waking experience is only a mental state, which disappears and reappears.
The first begin with gnosis and ends with the complete passing away of total annihilation of the waking experience (universe or mind or I).
The second begins with at the moment of the annihilation of the experience of diversity (I) succeeded by abiding or the union of the mind (I)its nondual substance, which is the true self. The union with the substance is the self realization or self knowledge or Brahma Gnana or Atma Gnana.
The aspirant who gets the Self knowledge or Brahma Gnana or Atma Gnana becomes an emblem of perfection and able to view and judge the three states from the standpoint of the formless nondual true identity, and realizes the fact that there is no second thing other then the Ataman or spirit in the whole experience of diversity. The whole experience is a mere mirage created out of the single substance therefore the waking experience has no reality in it, when it is viewed and judged on the base of the formless soul, the innermost self .
The third journey begins from the base of the soul, the innermost self and ends with the state of the perfect nondual-hood. He who comes to the final journey becomes the center of the experience of diversity form where it has been erupted. Thus he becomes free from the burden and bondage of the experience of diversity (I) in the midst of the experience of diversity consciously.
The aspirant while undergoing all these stages in the pursuit of truth has to pass through various level of understanding and cross all the fatter and obstacles to real his nondual destination.