Wholesale case of books. According to the astanga-yoga system, first of all one has to control the senses, follow all the rules and regulations, practice the sitting posture and the breathing process, concentrate the mind on the form of Visnu within the heart, and then become absorbed in that form. Arjuna says quite frankly that this astanga-yoga system is very difficult. Indeed, he says that it "appears impractical and unendurable to me."
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