The path of wisdom is inner (mental) journey. Self-knowledge and wisdom are one and the same thing. Without the intense urge it is difficult to tread this path. Self-realization is not an experience because the self is not an individual because it is formless and it pervades everything and everywhere in all the three states.
The soul or the consciousness, the innermost self is the witness-consciousness that experiences the action, the actor, and the world of separate things. It is like a light that illuminates everything in a theatre, revealing the master of ceremonies, the guests, and the dancers with complete impartiality. Even when they all depart, the light shines to reveal their absence.
A deeper self - search reveals the fact that: -the experience implies duality. And duality is falsehood from the ultimate standpoint. The ego, body and world appear together and disappear together. One cannot get rid of the ego alone. It is no use of challenging or indulging in an argument whether one is right and others are wrong, in pursuit of truth, because the pursuit of truth is the pursuit of verification. It is for the seeker to know how he is right how others wrong and on what standpoint he is right and others are wrong. And seeker has to verify himself what he knows as truth, is the truth or not.
BUDDHA SAID:~ Believe nothing just because a so-called wise person said it. Believe nothing just because a belief is generally held. Believe nothing just because it is said in ancient books. Believe nothing just because it is said to be of divine origin. Believe nothing just because someone else believes it. Believe only what you yourself test and judge to be true.
When the self is not the body, but formless soul, which is present in the form of consciousness than what's the use of hearing the sound is, seeing light, feeling vibrations in the spine. When body, sound, feeling, sight and ego and the world are made of single stuff, and that stuff is formless consciousness, which is the innermost self.
All these sounds, light, vibration belongs to Yoga prescribed by the great yoga master Paramhansa Yogananda (PY) and also in Radhaosomi. I also used to get all that type of experience when I was practicing Yoga (PY) for many years. But all that body based practices did not satisfy my inner urge to the ultimate truth.
Experience belongs to individuality. And individuality is falsehood. There is neither individual nor his experience in reality.
Man and his experience of the world cannot exist without waking experience. Whatever we are discussing, we are discussing within the waking experience, which is mere illusion from ultimate standpoint. Thus whatever is known, seen, believed and experienced as a person is bound to be falsehood.
The path of religion, the path of yoga and path of wisdom is meant for different classes of people. Mixing up with one another is like mixing oil in water. One has to move ahead with his chosen path, which satisfies him.
Sage Sri, Sankara said:~ VC-56. Neither by Yoga, nor by Sankhya, nor by 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 which merely causes the mind to ramble. Hence men of wisdom should earnestly set about knowing the true nature of the Self.
61. For one who has been bitten by the serpent of Ignorance, the only remedy is the knowledge of Brahman. Of what avail are the Vedas and (other) Scriptures, Mantras (sacred formulae) and medicines to such a one?
62. A disease does not leave off if one simply utters the name of the medicine, without taking it; (similarly) without direct realization one cannot be liberated by the mere utterance of the word Brahman.
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.
64. Without killing one’s enemies, and possessing oneself of the splendor of the entire surrounding region, one cannot claim to be an emperor by merely saying, ‘I am an emperor’.
65. As a treasure hidden underground requires (for its extraction) competent instruction, excavation, the removal of stones and other such things lying above it and (finally) grasping, but never comes out by being (merely) called out by name, so the transparent Truth of the self, which is by Maya and its effects, is to be attained through the instructions of a knower of Brahman, followed by reflection, meditation and so forth, but not through perverted arguments.
66. Therefore the wise should, as in the case of disease and the like, personally strive by all the means in their power to be free from the bondage of repeated births and deaths.
67. The question that thou hast asked today is excellent, approved by those versed in the Scriptures, aphoristic, pregnant with meaning and fit to be known by the seekers after Liberation.
The path of wisdom is only for those who found the path of religion, the path of yoga and all theoretical philosophy and scriptural studies inadequate and useless in quenching their inner thirst.
People who are yearning for spiritual truth will not find it through intellectual speculation and assumption. Intellectual truth is individual truth. The urge to know the truth cannot be imposed on others. It has to sprout within. One need not become holy Shepard because the holy Shepard is within to guide every seeker.
Thus, Self-knowledge or Brahma Gnana or Atma Gnana is meant only for those who have an intense urge, and courage to accept the truth with humility and reject the untruth. Since people start comparing with their scriptural and intellectual knowledge, it becomes impossible to assimilate and realize the non-dual truth. Therefore, there is no need to convince anyone other than our own-selves to get the firm conviction.
It is for every seeker who is in the path of truth to prove himself to know “What is truth, “and “What is untruth?” through deeper self-search, to assimilate the Self –Knowledge or Brahma Gnana or Atma Gnana.