In practicing Taichi Quan, One must first analayze and understand the structure and the moral character of the routine. The special characteristics of the Taichi Quan are the changes in the Yin and Yang, the lightness and the dexterity of the movements, focus on using the mind power rather than pure strength. There is harmony between the inner and outer parts of the body. The important body parts from bottom to the top are: toes, ankles, knees, hips, elbows, waists, shoulders, wrists, hands and nails.