People generally overestimate their feelings and sensations, and a yoga samadhi which is nothing but a long trance (Hal) and which has nothing whatsoever to do with Nirvana or Nirvikalpa Samadhi, is invariably supposed to be God-realization. At the most, it means just a little spiritual rest. This kind of Samadhi can never advance anyone, just as rest can never accomplish any work. In it the mind