Patanjali Samadhi is not Advaitic Self-awareness. Samadhi is not Self-awareness because it is based on the false self (ego).+

Yogic exercises are to great tool to overcome stress and to lead a healthy life but yogic Self-realization is not Self-realization because it is based on a false self (ego).     

Sage Sankara says:~ Yoga is not the means of liberation. (p-one thirty-two and thirty-three of his commentary on Brihadaranyakopanishad).

Brihad Upanishad.:~ Even yoga cannot give perfect concentration and the only way to gain it is through philosophical realization.

Manduka Upanishad:~ Yoga can no more succeed than the ocean can be emptied with a blade of grass.

Tattireya Upanishad: ~ There are two different samadhis, philosophic and Sahaja Samadhi, which is the highest in which is in full wakefulness, and then he inquires what is meant by this world, the world is seen in this Sahaja Samadhi. Whereas Yogic or Nirvikalpa Samadhi is just like swoon or deep sleep, where one is unaware of anything, not even the world. (Pages 640,641 and verses 132,133)

Patanjali Samadhi is not Advaitic Self-awareness.   Samadhi is not Self-awareness because it is based on the false self (ego).   Samadhi is Yogi's personal experience hence duality. The Soul, the Self cannot be experienced because it is ever nondual.

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

Brihad Upanishad does not advocate Samadhi.

Yoga can yield 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 standpoint, not non-dualistic truth, which is the ultimate reality.

What happens when thoughts are stilled? It is not the ultimate truth that is found. Thoughtlessness is not wisdom or Gnana. It is only ignorance.

A Gnani imparts Knowledge to others. A Yogi lies in Samadhi like a wooden log so he does not know yogic Samadhi is not wisdom.  Gnani is fully aware of all things, either permanent or perishable and he has realized both permanent and perishable to be consciousness.  Thus, the consciousness alone is real and eternal all else is merely an illusion.

Patanjali yoga is not Atma Gnana, therefore, yoga does not know the highest truth. Yoga is good to give peace and concentration, but only to start reasoning, i.e. thinking again and again to find the truth, which is beyond form, time, and space.

Yogic Samadhi is not a goal, but a means to an end, i.e. Gnana. Samadhi in itself is useless because the mind is withdrawn and there is no memory of it until after it is over and one returns to a waking state. A yogi who attains mind control: is only deep sleep.

Yoga is based on the ego whereas Advaitic wisdom is based on the Soul, the Self. Whatever is based on the ego is a myth and whatever is based on the Soul, the Self Is the ultimate truth.

Gnani does not want to think of the ego, therefore, he does not do or say anything to make himself appear superior to others or to pretend to know more than others.  If a person spends his time in Samadhi, he is not a Gnani, but he is only a yogi. The Gnani is as alert and awake to what is happening to him externally as all other people: he is not a yogi in Samadhi. A yogi does not know the ultimate truth or Brahman because he believes his Samadhi as Brahman. The Gnani has realized the world in which he exists is merely an illusion created out of consciousness.  And consciousness is the ultimate truth or Brahman. 

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

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

In Samadhi the yogi knows nothing, and 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 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 inquiry so that you find nonduality 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.

Remember: ~

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 a reality when wisdom dawns. The universe is a mere mirage created out of consciousness and there is a conscious awareness of unity in diversity because there is no second thing exists other than 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 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 yoga must see "Brahman in action.”

Yogic teachings are based on imagination. Yoga cannot give you the truth because it is based on Myth.

Manduka Upanishads: ~ Those who want Brahman will not practice control of the mind.  That is Yoga for duffers. The others will inquire and practice discrimination. (p.231)

Upanishad says Atman the Self is known by Reason alone, by the sharpened and purified intellect. Yet still, people worship Yoga and mysticism as the sole means of attaining Atman.  The illuminations gained by yoga or by trance states are always temporary ones. : ~ Santthosh Kumaar