Yoga: The Alpha and the Omega, Vol 9
by Osho Bhagwan Shree Rajneesh
Osho speaks of Patanjali's system of preparation for enlightenment as empirical, a tool to work with. He talks on mastery over the five bodies of the human personality - the food body, energy body, mental body, intuitive body and the bliss body; and speaks about Pantajali's view of cognition, non-attachment, and liberation.
About Osho, the author: