During a typical Dahn Yoga class, one of the ways to release negative energy in the body-brain system and get fresh energy flowing is to tap the body. The hands may be in gentle fists or open. Tapping looks like it is just on the surface of the body, but through its vibrations its effects go deep inside the body to impact on blood and organs. The skin is stimulated, joints loosen, muscles relax and the blood and organs love the opportunity to get rid of their tension and toxins.