Mundaka Upanishads: ~ “So-called spiritual pundits and learned are called children because a child takes whatever it thinks as truth.+

Sage Sankara clearly says:~ Neither studying philosophy nor by mastering scriptures by worship as many gods nor observe ceremonies nor by singing devotional hymns nor by uttering mantra nor by mastering the scriptures liberation comes without realizing the Oneness.

All the gurus of the east and west interpret Advaita from a dualistic standpoint or orthodox point of view and they are still dealing with words, not truth.  It proves that they have not understood the Advaitic wisdom of Sage Sankara.

Mundaka Upanishad: ~ “The study of the Vedas, linguistics, Rituals, astronomy and all the arts Can be called lower knowledge. The higher Is that which leads to Self-realization. The eye cannot see it; the mind cannot grasp it. The deathless Self has neither caste nor race, Neither eyes not ears nor hands nor feet. Sages say this Self is infinite in the great And in the small, everlasting and changeless, The source of life.

Mundaka Upanishads: ~ “So-called spiritual pundits and learned are called children because a child takes whatever it thinks as truth. The question never occurs to children “Is what I have seen or thought really the truth?" (P.334 line 9)

That is why Sage Sankara declare: ~ 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 that 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 ultimate truth or scientific truth.

“It takes time for the seeker to gain the perfect understanding of ‘what is truth’ and ‘’what is untruth’. It takes time for the Soul, the innermost Self to wake up from the sleep of ignorance, and it takes time for one realizes the truth, which is beyond form, time,, and space. : ~ Santthosh Kumaar