In this app you will learn from master some energization technique. Pramhansa yogananda in early 1900 showed some good technique to the people. Also these technique he is mentioned in autobiography of yogi book. We think for more in depth study you should read this book. You will also learn thought about kriya yoga from master. Yogananda learn from yuketeshwar giri who is diciple of lahiri mahashaya and they both know about mahaavtar babaji who reinvented this technique.