History
Xingyiquan, "form-intention fist", is an internal Chinese martial art traditionally credited to the general Yue Fei and historically to Ji Jike (Ji Longfeng) in the 17th century. It moves in straight lines with short, explosive strikes.
Its core is the "five elements" fists — metal, water, wood, fire and earth — and twelve animal forms. Masters such as Guo Yunshen and Sun Lutang made it famous.