Advaitic wisdom of Sage Sankara is nothing to do with yogic 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 the Advaita.

Samadhi is the same as deep sleep. Yogi is trying to imitate nonduality through Samadhi by stilling the thought.

Advaitic wisdom of  Sage Sankara is nothing to do with yogic Samadhi.

Ignorance will not vanish through yogic Samadhi. Yogic samadhis is an individual act.  The individual belongs to the universe. The universe is a product of ignorance.

Ignorance will vanish only when the seekers unfold the mystery of the universe in which he exists. 

Sage Sankara: ~ VC~63- "Without knowing and examining the universe, one can’t know the Truth, as the idea that the universe exists, won't go. It can go only by an inquiry into the nature of the universe.

The universe itself is what God is all about. The totality of the universe is what God is all about. You just study the nature of the universe with all the seriousness and sincerity to unfold the mystery of the universe. That is all you have to do.

Until the mystery of the universe is not solved, the Self hidden by the illusory universe will not be realized.

Consciousness is the one single reality or Brahman. The individual self is a reality within the illusory universe or Maya.

Remember: ~

Yoga and samadhi are not goals, 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 Samadhi in itself is useless because the mind is withdrawn and there is no memory of it until after it is over and one returns to the waking state. This is true of men Like Ramakrishna as well as the humble yogi who attains mind control: it is only a sleep.

It is not possible to stop thought for more than a half-second whilst in the waking state. If one succeeds in controlling thought and then banishes it, one passes into Nirvikalpa samadhi, which is identical to deep sleep.

The only difference between ordinary deep sleep and samadhi, therefore is that the ordinary man falls asleep involuntarily whereas the yogi has the satisfaction of knowing that he has passed into sleep by his own effort of will in banishing thoughts. And where Patanjali warns against sleep as a hindrance to yoga, he means when it occurs in the early stages of the practice before one has obtained the power of control and consequently to banish the thoughts.

This fact that Samadhi is deep sleep is kept secret because people would not be tempted to take up yoga. Then what is the value of it? Why, to sharpen the intellect, to enable it to keep away all extraneous thoughts when one gets out to reason in the practice of the next higher stage, i.e. Gnana.

Yoga is thus simply a sharpening-stone for the intellect to enable it to take up Gnana. But you say that Some Godman lives without thoughts, Impossible. How can he walk from one spot to another without thought? He does not know the Advaitic truth if he says thoughtlessness is the perfect stage of the Self.

When thoughts are stilled, it is not the Self that is found but still, it is only ignorance that prevails.

Patanjali has not reached Gnana and therefore does not know Advaitic truth. His yoga is good to give peace and concentration, but only in order to start reasoning, i.e. thinking again to find the truth.: ~Santthosh Kumaar