Tai CHi feet training

Although Tai Chi Chuan is named as "Chuan" (fist), in reality, it starts with the feet, training from the feet up. In this sense, Tai Chi Chuan can also be called Tai Chi foot. Therefore, the ancients proposed the concept of "its root is in the feet." This concept, both in theory and practice, developed the martial art of Tai Chi Chuan. Who proposed this idea? Initially, I saw materials suggesting it was the work of Master Wu Yuxiang. However, later, books such as "Comprehensive Guide to Taoist Qigong" and "Oriental Cultivation Library" as well as "The Small Frame of Wudang Zhao Bao Tai Chi Chuan" reprinted content from the 1970s Taiwan Freedom Press publication "Essence of the Taoist Canon," revealing that it was Zhang Sanfeng who proposed this idea. His secrets consist of fifteen sections, and the fourth section, "Tai Chi Chuan Method," mentions "its root is in the feet." Comparing this to Wu Yuxiang's works, except for a few words, the content is entirely the same. Here is an excerpt from "The Small Frame of Wudang Zhao Bao Tai Chi Chuan":