Taiji Push Hands (Tuishou): Principles, Methods, and Techniques of Traditional Zhaobao Taijiquan
"When the opponent does not move, I do not move. When the opponent stirs slightly, I move first. The force is like loosening without fully loosening, about to extend but not yet extended, following curves to stretch, force may pause but intent does not, and if intent pauses, spirit can reconnect." These sayings are a faithful portrait of true push hands skill.