The Thirteenth Form of SunStyle Tai Chi is a unique and attractive boxing method. It absorbs the essence of many traditional martial arts, with unique movements and postures, proper coordination of breathing and movements, and contains rich philosophical thoughts. This boxing method not only helps to enhance physical fitness, but also cultivates sentiment. It is a very excellent way of exercise. Historical Origin The Thirteen Forms of Sun Style Tai Chi founded by Mr. Sun Lutang have a long historical origin.