Sage Sankara’s Advaitic wisdom is the Science of the Spirit.+

Sage Sankara’s wisdom can be summed up in one sentence, "There is nothing else but Brahman". He says that the Absolute Existence, Absolute Knowledge,  and Absolute Bliss is Real. The universe is not real. He says that Brahma and Atman are one. The ultimate and the Absolute Truth is the Self, which is one though appearing as many in different individuals. The individual has no reality. Only the Self is real; the rest, mental and physical are but passing appearances.

All three states have to be resolutely weighed, and accurately, observed in the pursuit of truth. The seeker must inquire “What is this universe?”, “What is this  I?”  Hence, inquiry and reasoning is a necessary foundation. The Yogi who looks only inside and ignores the world throws away part of the materials needed to find the truth.

Without knowing the nature of the three states, it is impossible to know the truth. What is the use of trying to find his inner Self before he understands the world, which confronts him? "The world which confronts him is also consciousness."

If the seeker does not make your induction from facts from the world before him then he has only drawn on his imaginations. Then he says “The Brahman is like this, or like that." but it will be only his mental construction.

Those who are of a dulled mind say that to be non-observant and to withdraw: keen powers of observation are desirable and will help, not hinder the pursuit of truth. The seeker has to take experiences as they come to him and he should not run away from the world in ascetic fear. 

The ultimate truth has to be ascertained without the scriptures by realizing the Self is neither the waking entity not the dream entity but the Self is a formless Soul which is present in the form of consciousness. In the realm of truth the 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 scriptures. 

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

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.

I quote Scriptural citation only after verification of the reality and proved truth, to point out that the scriptures teach the same thing. If one quotes them before having demonstrated truth, then it is scholasticism.

Remember:~

Self-knowledge cannot be attained by the study of the scriptures and intellectual understanding or by bookish knowledge.  Therefore, there is no use of studying the scriptures and other scriptures in order to acquire the non-dual wisdom.  That is why Buddha rejected the scriptures, and even Sage Sankara indicated that the ultimate truth lies beyond religion, the concept of God and scriptures.

There is only one Reality to be known, the same for all seekers, but the ways to it, are hidden by the religion.  Self-discovery is the only way, toward non-dual Absolute without any religious doctrines, which will help the seekers to unfold the mystery of the illusion in which we all are searching for the truth of our true existence.

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 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 hidden 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.

Then there is no need for the scriptures, religion, and idea of God.  One has to be more rational to realize the Advaitic truth, which is the ultimate truth or the scientific truth. 

Remember:~  

Sage Sankara’s Advaitic wisdom is the  Science of the Spirit.

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

Sage Sankara:~ 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.

Isa Upanishads indicate that: 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 nondual 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. The orthodoxy projected him as a theologian.

Sage Sankara’s Advaitic wisdom is not even a philosopher dish cooked to suit exclusively the palate of one particular religion. The Advaitic wisdom of Sage Sri, Sankara is like the air and the water, the common food for the whole of humanity.

If rightly interpreted Sage Sankara’s Advaitic wisdom as spiritual food for the whole of humanity. Advaitic wisdom is the universal wisdom par excellence. Advaitic wisdom is not just a not a philosophy, but not a science, but the Science of Truth.

Sage Sankara gave religious, ritual or 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 say:~

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 Advaitic 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 the scriptures are saying

The Upanishads are the only scriptures in the world that say:-

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 Ataman 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 a great obstacle to 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 assimilating and realizing 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 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 a 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