In the traditional Western thinking, the umbilicus has always been regarded as the source of life and the symbol of heritage, progression and fecundity. It became also the symbol of the urban center in the European Renaissance period. In Chinese medicine and Taoist discourse, ming-men (the gate of life) has long been identified as "the chi reserve of the lower dan-tian," full of the Eastern body image of life flow. When taken together as both centers of body deployment, the umbilicus and ming-men map out a front/back, outside/inside, present/absent, western/eastern contrast. This research project will take this culturally and bodily differential relationship between the umbilicus and ming-men as departure to make a linkage first with the contemporary French philosopher Gilles Deleuze especially in light of the difference he made between the point system and the line system in his philosophical thinking of becoming, and then with the philosophical thinking and embodied experience of practicing Tai-chi Chuan. According to the traditional philosophical discourse of the body, the umbilicus and ming-men tend to be categorized in the point system which emphasizes being, identity and representation: the umbilicus as the central point of the body and ming-men as the acupunctural point of the jing-lao energy channels. But this research will attempt instead to turn ming-men from the point system to the line system to highlight becoming, flow and decentering, and thus to differentiate it from the umbilicus of the point system. The crucial argument of this turning will be facilitated by bringing in the Chinese philosophy of Chi and the formation of the chibody in order to make ming-men no longer a single, fixed point but a node of becoming, flowing in the rhizome-like Jing-Luo network of chi.