Chen Sheng-Yu, student for 12 years under Master Hong Jungshen, who was in turn disciple of legendary Chen Fake, reveals in this new work the keys for this essential part of Tai Chi: Tui-Shou, or hands pushing. During the practice, there are martial applications which emerge from all concepts learned in the forms, and their understanding is essential for a proper practice of Taijiquan, even if it is practiced for therapeutic purposes. Only a Master like Chen, with a high technical level, can help us to make progress in learning this section, considered the "fourth pillar" of Tai Chi.