反客為主/Fan Ke Wei Zhu – Reverse Guest & Host
原文：乘隙插足，扼其主機，漸之進也。
Original Text: Seize the opportunity to step in, control his leader, this is gradually advancing.
解析：趁著有空隙就插足進去，循序漸進，控制它的首腦機關，從而掌握主動權。
Analysis: Take advantage of contact to gain the time to open a gap, then step in & go, make steady progress incrementally to exercise control over his leadership, thereby spontaneously seizing authority.
Lessons Learned in the World of Martial Arts 