Sage Sankara : ~ The highest beatitude is not to be attained by Yoga.+

Yoga is based on the body as the Self. The deeper investigation reveals the fact that the Self is not the body. Therefore, the physical-based practices will not yield truth. Yoga has its own value in practical life within the practical world. But yoga is nothing to do with the ultimate Truth or Brahman.

The path of Wisdom is nothing to do with yoga and religion. The path of religion, the theory of karma, the yogic path, and the path of wisdom were intended for different classes of people. 

The path of wisdom is for the advanced seekers of truth. It deals with the nature of the ultimate Truth and Reality. It is meant for superior aspirants who have an inner urge to know the truth and it is not for those who are immersed in earthly desires.

Remaining thoughtless in the waking experience is Yogic Samadhi. Yogic Samadhi is not the Advaitic wisdom

Brih Upanishad: page 32. "Yoga does not yield truth or liberation."

One who is in Samadhi will not know that this universe as the consciousness; therefore yoga is not the means to Self- knowledge or Brahma Gnana or Atma Gnana.

In Samadhi the yogi knows nothing, sees no universe; so if there is nothing but blankness. The blankness is not the Advaitic wisdom.

The yogi does not know the nature of the universe. If the universe is not seen in the Samadhi then there is no need to use the word Atman and Brahman.  The yogi is unaware of the truth, which is beyond the form, time and space. 

By shutting his eyes in Samadhi, the Yogi does not know the universe, which confronts him. Hence the universe can't be known as the Soul or the consciousness through yoga.

One is in a non-dual condition in deep sleep or Samadhi, One without a second, true, but he did not know it at the time. He says only in the waking experience afterward. Hence, there must be an inquiry so that you find non-duality whilst you are awake so that you can see nonduality at the time not afterward. Hence, too the need for inquiring into the nature of the universe and knowing it as the Soul or the consciousness whilst one is awake, and not during sleep or Samadhi.

Advaitic truth is the ultimate truth.  Yogis, Mystics and religious teachers do not accept the path of wisdom because it pries into the truth, the source and the validity of the knowledge they claim. Therefore, it is the most difficult part of the study of Advaita.

That is why Sage Sankara said: ~VC-63- “Without causing the objective universe to vanish and without knowing the truth of the Self, how is one to achieve Liberation.   

The universe in which we exist will not remain as reality when wisdom dawns. The universe is a mere mirage created out of the consciousness and there is conscious awareness of unity in diversity because there is no second thing exists other than the consciousness.

Lord Krishna confesses that the oldest wisdom of India (Advaitic wisdom) has been lost: people misinterpret and falsify it today as they did then. It is not yoga but the philosophic truth. But nobody knows it. The teachers of philosophy and leaders of mysticism or religion do not want to inquire into truth and have no time for it. (Gita –Chap- IV-v.2)

In Gita Chap.IV where Lord Krishna says: ~ "This yoga has been lost for ages" the word yoga refers to Gnana yoga, not other yogas: the force of the word this is to point this out.

Lord Krishna describes some of the other yogas but devotes this chapter separately to Gnana Yoga. So one sees even in those ancient days people did not care for Advaita; they wanted religion; hence Gnana got lost. That is why Krishna calls it "the supreme secret." Krishna points out that the yoga must-see is "Brahman in action."

As per the scriptures, the three "Ashrams" or stages in life were originally intended for three grades of intelligence thus:~

Religion: low intellects had to do 'karmas' works, ritual actions, chanting of mantras and indulging in Bajans and prayers, etc.

Middle intellects:~ Yoga: taking yellow robes, going to the caves, ashrams, and doing meditation, etc.

High intellects:~ Wisdom who wanted truth are concerned with no external rites or sanyasa but depend solely on the intelligent inquiry for their path.
Remember:~

Sage Sankara says: ~  Yoga is not the means of liberation (page 132-133 - Commentary on Brihadaranyakopanishad).

In Sutra Bashya and Manduka: ~ The Samadhi and sleep are identical.

Brihad Upanishad does not advocate Samadhi.

Sage Sankara in the commentary to "Brahma Sutras: ~ " "The highest beatitude is not to be attained by Yoga." (Sacred Books of East Series page 298 Vol.1.) And he also says Samadhi is the same as sleep (p.312) ~this indicates that yoga is not the means to Self-realization.

Yoga can yield only the duality because everything that one can do or practice becomes a vanishing 'known.' It yields relative truth based on imagination, which is true from the physical viewpoint of view, not the Advaitic truth, which is the ultimate reality or Brahman or God in truth.

Realizing the universe is created out of single stuff and that single stuff is the Soul, which is present in the form of consciousness leads to non-dualistic or Advaitic Self-awareness. Self-awareness is freedom or Moksha. Moksha is unity in diversity in the midst of duality. :~Santthosh Kumaar