What Is Yoga? Part 1

The word yoga means literally means "union" or "to merge". More than a set of physical postures or exercises, Sadhguru defines yoga as a science to determine the nature of who you are and what you want to be. Scientific research has shown today that the very fundamentals of the brain's activity, inner chemistry, and genetic predispositions can be changed by practicing certain systems of yoga. Yoga is essentially a technology to change the shape of who you are.