Tai Ji Chuan is not only a martial arts project, but also a physical fitness project, which has a long history in China. Originated from the marksmanship and long-handled knife method of ancient cavalry. Its basic usage is: open, close and send. With a pike and a broadsword on stilts. Tai Chi begins with infinity and is divided into two devices. From two instruments to three talents, from three talents to four elephants, it has evolved into gossip. According to the Yin-Yang theory of Yijing, the collateral theory of traditional Chinese medicine and Taoism, a set of boxing methods with Yin-Yang nature, which conforms to the human body structure and natural operation law, was called "Tai Chi" by the ancients. Another movie is named after this.