Yoga Sutras 3.39-3.49 discuss how a yogi gains knowledge of the way mind-stuff moves into and interacts with the body. It examines how samyama helps to break the false identification with the body. And in this episode we examine that last one of this pack, we have arrived at Sutra 3.49 declaring that By that mastery over the senses and acts (indriyas), there comes quickness of mind, and perception, and mastery over the primal cause out of which manifestation arises.