Thanks for the info. He is somebody who studied energy work and healing massage in China for 20 years. He then studied another form of enery work in Hawaii. He believes yoga should not be aerobic exercise. He said traditional yoga actually only teaches one pose at a time. When you master that pose and that can take up to a year you move on to the next one. He also said that in India traditional yoga instructors have at least 20 years experience before teaching yoga. Many instructiors in America are only in their 20's and can't possibly have the experience necessary to safely teach students. He said yoga is very serious energy work and when you just throw poses together without really understanding their meaning it can become very dangerous.