The Mandarin term "tai chi chuan" literally translates as "supreme ultimate fist" or "boundless fist," but may better translate to "great extremes boxing," with an emphasis on finding balance between two great extremes. The concept of the "supreme ultimate" is the symbol of the Taijitu meant to show the principles of Yin and Yang duality of Taoist philosophy. Thus, tai chi theory and practice evolved in agreement with many of the principles of Chinese philosophy and Taoism in particular. Tai chi training first and foremost involves learning solo routines, known as forms (套路 taolu). While the image of tai chi chuan in popular culture is typified by exceedingly slow movement, many tai chi styles (including the three most popular, Yang, Wu and Chen) have secondary forms of a faster pace. The other half of traditional tai chi training (though many modern schools disregard it entirely) consists of partner exercises known as pushing hands, and martial applications of the postures of...