In Taijiquan, the empty step trains the insubstantial leg to remain free and responsive, following the changes of the body. The form’s exaggerated stepping pattern is a training method, not a model of actual footwork.
Taijiquan is more than slow movement or a form of health exercise. At its core, it is a martial art defined by the relationship between partners, the principles of yin and yang, and the subtle skills developed through tuishou.