Hsing-i chuan is one of the major Chinese internal styles of Wu Dung.
Although some historians believe Song dynasty Gen. Yue Fei (1103-1142) created hsing-i chuan, others credit Ji Ji-ke (aka Ji Long-feng; 1588-1662) with creating the style based on the movements of his famous spear skills.
Ji Ji-ke stressed that the body’s actions and movements should be guided by the mind. He also believed that harmony could be achieved by copying the tactics and physical movements of the dragon, tiger, monkey, horse, turtle, chicken, hawk, swallow, snake, owl, eagle and bear. Furthermore, hsing-i chuan stylists use the five elements (metal, wood, water, fire and earth) as a basis for responding and reacting to an opponent’s movements.