No, teacher Mozi is not a liar. Rodless pile, also known as natural pile, is one of the important piling methods in Tai Ji Chuan's internal work, and is regarded as the foundation of Tai Ji Chuan by boxers in past dynasties. The boxing theory says, "Tai Chi people are born without promises." When practicing this pile, the body is in a highly relaxed, heart-shaped, harmonious and invisible state, which is a balanced and harmonious internal health exercise.