On this 10 th delivery of the Encyclopaedia, the Shaolin monk Huang Aguilar presents the Tui Shou, the term battle of the forms of Tai Chi. The Tui Shou or "pushing hands" is the most dynamic and most complicated of the practice of Tai Chi Chuan, as it requires an enormous concentration and skill, and a great knowledge of the forms, as well as the anatomy human body.