Samadhi has two stages: Samprajana samadhi - enstasis where there is
still object-consciousness. Nirvikalpasamadhi - where there is no
longer any object-consciousness.
The purpose of yoga is to isolate bodily fluctuations and pass into
samprajana samadhi, hence to total isolation of mental fluctuations aand
then to pass into nirvakalpasamadhi where the Self is not hidden by
external conditions of the body or the mind (citta).
Asamprajnatasamadhi became known in later Vedanta circles as
nirvikalpasamadhi.
/"The point to be noted about yoga is that its whole soteriology is
based upon the suppression of mental fluctuations so as to pass
firstly into samprajnatasamadhi and from there, through the complete
suppression of all mental fluctuations, into asamprajnatasamadhi, in
which state the Self remains solely in and as itself without
being hidden by external, conditioning factors imposed by the mind
(citta)." - //Michael Comans/
*'The question of the importance of Samadhi in modern and classical
Advaita Vedanta' *
http://buddhism.lib.ntu.edu.tw/FULLTEXT/JR-PHIL/comans.htm
/"Yoga citta vritti nirodha."/ - Patanjali Y.S. I.1.2
/"Yoga is the cessation of the mental turnings of the mind."/ -
Translation by Swami Venkatesananda
Samadhi:
1. Sanskrit (Saúmaúdhi) n. Jap., sanmai or zanmai
2. Nirvana, Parinirvana
3. from the root word 'Sam', to establish, make firm.
4. A conscious experience that lies beyond waking, dreaming, and deep
sleep.
5. A meditative mental equipoise.
