Tai chi chuan or Chinese boxing, is ancient and distinctive Chinese form of exercise is popular throughout the world. As exercise, tai chi chuan is designed (provide) relaxation in the process of body-conditioning exercise and is drawn from the principles of taiji, notably with the harmonizing of the yin and yang, respectively the active principles. It employs flowing, rhythmic, deliberate movements, with carefully appointed stance（s 站姿）and (position), but in practice no two masters teach the system (exact) alike. As a mode of attack and(defend), tai chi chuan is properly considered a martial art, (resemble) kung fu. It may be used with or weapons.
Freehand exercise to promote health (practise) in China as early as the 3rd century, and, by the 5th century, monks of Shaolin Temple were performing exercises imitating the five creatures: bear, bird, deer, monkey, and tiger. The snake was added (late), and, by the early Ming Dynasty, the yin and yang principles had been added to harmonize the whole. An assimilation（同化）of these developments, the art of tai chi chuan was systemized and named in the early Qing Dynasty.
