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. +

Tattireya Upanishad: ~ “There are two different Samadhis, philosophic and Sahaja Samadhi, which is the highest, in which one 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. (Page 640,641 and verse 132,133)

Each person sees in his own Samadhi whatever is uppermost in his mind. How does he/she or anyone know that what he/she or anyone sees is the truth? Similarly, each has intuitions agreeable to what is uppermost in his mind.

A yogi cannot attain realization because he thinks his body to be the body and the world to be the world, and fails to see them as consciousness, and thinks his experience of Samadhi is because of his individual effort. The individual experience is limited to waking experience is merely an illusion.

Thus, even his Samadhi is also limited to the waking experience, which is merely an illusion. He thinks the thoughtlessness is Samadhi, but thoughts are of individuality. Thoughts disappear even in deep sleep. Therefore, deep sleep is not wisdom. If one thinks thoughtlessness is Samadhi and Samadhi is Brahman, then anyone gets knowledge of Brahman by taking sleeping pills or hemp.

In Sutra, Bashya and Mundaka Upanishads: ~ 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 the East Series page 298 Vol. 1.) And he also says Samadhi is the same as sleep (p.312)-- which indicates that yoga is not the means to Self-realization. And yogic Samadhi is not nondualistic or Advaitic-awareness. : ~ Santthosh Kumaar