Intuition always implies knowing something, hence a second, hence it is rejected as duality.+

Intuition always implies knowing something, hence a second, hence it is rejected as duality. Even if it is the intuition of the infinite, of bliss, God, etc., it is still a pointer to duality. Therefore the way to ultimate truth or Brahman, i.e. Non-duality is not intuition, not mysticism but reason.

The beliefs are considered to be barriers to realization.

Meher Baba Said: ~ A true aspirant is not content with the knowledge of spiritual realities based on hearsay... he insists on the direct knowledge."

A scholar is proud that he has accumulated so much knowledge; Gnani is humble that he knows no more.

Isa Upanishads indicates ~ By worshipping Gods and Goddesses and going to the world of Gods after death is of no use.  The time one spends in ritualistic practices is wasted; one can spend the same time moving forward towards Self-knowledge, which is the main goal. One cannot reach the non-dual destination by glorifying God and Goddesses and by doing that, one goes deeper and deeper into darkness. It surely indicates the fact that the seeker of truth has to drop the worshiping God and Goddess in order to get Self-knowledge.

Sage Sankara as a rationalist philosopher, in contrast to the more traditional image of him as a theologian: (Sage Sri, Sankara’s system of Advaita) is not even a philosopher dish cooked to suit exclusively the palate of the Hindu. It is like the air and the water, the common food of all men in all countries. It is ... an attempt ... at constructing a "Science of Truth," nay, in fact, it is the only attempt yet made at such a science. If rightly interpreted Sage Sankara’s teaching as food for all humanity, the universal teaching par excellence; it is not just a religion, but the religion; not a philosophy, but the philosophy; not a science, but the Science of Truth; not a soteriology, but the path to spiritual liberation par excellence, wide and deep as the ocean which contains virtually all the water of the world and in which all particular forms ultimately dissolve.

Sage Sankara gave religious, rituals, and dogmatic instruction to the mass but pure philosophy only to the few who could rise to it. Hence the interpretation of his writings by commentators is often confusing because they mix up the two viewpoints. Thus they may assert that ritual is a means of realizing Brahman, which is absurd. 

The Upanishads says:~

 
Mundaka Upanishad 1:2:8:~ “Remaining in the fold of ignorance and thinking “we are extremely wise and learned,” the fools with boastful nature ramble about like the blind led by the blind alone.” 

Mundaka Upanishad 3:2:3:~ “The weak and timid cannot realize the Self. Self-Realization is not possible through intellect or hearing the spiritual discourse. One who welcomes God in every activity, through a thorough controlled and disciplined life, to him also the Soul is revealed

Katha Upanishad 1:2:23:~  The Soul cannot be realized through hearing a scholarly explanation of the discourses, not even by the intellect.

Katha Upanishad 1:3:6:~  “Through the knowledge of the Soul God, one is pure and clean constantly.” Neither by reading the books nor by taking a bath at the holy place has one become pure. Inner purity is possible when one remains in constant touch with the Soul. Constant Soul Consciousness is real purity. 

Kena Upanishad 2:4:~ When it is known through every state of cognition, it is rightly known, for (by such knowledge) one attains life eternal. Through one's own 'Self' one gains power and through wisdom, one gains immortality. 

Kena Upanishad 2:5:~ If here one knows it, then there is the truth, and if here one knows it not, there is a great loss. Hence, seeing the Real in all beings, wise men become immortal on departing from this world.

The scriptures are being added from time to time. This process will go on. There is the final authority among them? One contradicts the other: duality reigns supreme.

The Upanishads are Self-contradictory. Every pundit even gives conflicting interpretations of them. The final authority, therefore, is using one’s own reason. One should apply his reason to them.

The scriptures are for ignorant masses, who wholly accept the material world as it presents itself. Gnana is for those who have begun to realize that things are not what they seem.

The Scriptures are of value only when dealing with persons who are incapable of understanding the truth. They have no value as authority for those who use reason.   I quote only verified citations from the scriptures. I need no scriptures but I quote them to help the seekers realize what the scriptures are saying.    

The Upanishads are the only scriptures in the world that declare:~

It is impossible to find and realize the truth via religion and scriptural study.

Katha Upanishad: ~ This Atman cannot be attained by the study of the Vedas, or by intelligence, nor by much hearing of sacred books. It is attained by him alone whom It chooses. To such a one Atman reveals its own form. (Katha Upanishad Ch-II -23-P-20)

Mundaka Upanishad: ~ “This Atman cannot be attained through study of the Vedas, nor through intelligence, nor through much learning. He who chooses Atman—by him alone is Atman attained. It is Atman that reveals to the seeker Its true nature. (3 –page-70  Upanishads by Nikilanada)

When the Upanishad says: ~ “The human goal is to acquire Self-Knowledge and they indicate the personal Gods, scriptures, worship, and rituals are not the means to Self –Knowledge, then why anyone should indulge in it. The religion, concept of individualized God,  belief in physical Guru scriptures are the greatest obstacle to realizing non-dual truth or Self-realization because they are based on false Self.  The seeker of truth has to search for the ultimate truth without losing himself in the labyrinths of philosophy, through deeper Self-search and assimilate and realize it.

That is why Sage Sankara, indicated in Bhaja Govindam says: - (Jnana Viheena Sarva Mathena Bajathi na Muktim janma Shatena) - one without knowledge does not obtain liberation even in a hundred births, no matter which religious faith he follows.

Then it is no use going a roundabout way, trace the Brahman which is the formless substance, and witness of the universe, which is in the form of mind.  By tracing the source of the mind or universe one will be able to realize the Brahman.

Thus, Self-knowledge is meant only for those who have intense urge, and courage to accept the truth with humility and reject the untruth. Since people start comparing with their scriptural 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. 

So they clearly indicate rituals and theories are not meant for those who are searching for higher knowledge or wisdom.   The path of wisdom is the only means. 

The knowledge of both matter and spirit is True knowledge. The true knowledge is Self-knowledge or Brahma Gnana or Atma Gnana. : ~ Santthosh Kumaar