"For liberation, one enters into another territory called nirvana-bhumi by the Buddhists and nirodha-bhumi by Patanjala Yoga. But between this and the previous stage there is an intermeditate ground, a no man's land. It is at the apex of samprjnata samadhi and at the beginning of asmaprajnata samadhi. ... Here by sustained practice of the Yoga of discrimination or viveka-khyati, which separates the seer from the seen and the instruments of seeing, Purusha is seen for the first time as separate from Prakriti.... When this knowledge arises, the asmita klesa is destroyed. ... But when the chitta or the buddhi knows that it merely reflects a light which belongs to someone othere than iteself, the spiritual man is born. The asmita klesa, known as the heart-knot in the Upanishads is destroyed.... But what we have called the intermediate no man's land above has a rough and ready sort of Buddhist analogue in its eighth samapatti: naivasamjna nasmajna, neither knowing nor unknowing. It means the samsara has ended but the nirvana has not begun; the mind has ended but the Self has not begun. What is called asamjna here is called asamprjnata in Patanjala Yoga.(p. 83 ff)"