After ”the theory of temperament” was transformed into ”the theory of human nature”, the personality spirit of advocating nature and the living attitude of saints having emotions but not being involved in emotions was completely developed in the Liang-Jin Period. This text is to discuss the development process of metaphysics from political subjects to life subjects via ”Shih Shuo Sin Yu” and related materials, and understand how metaphysics transformed into the spirit attitude that scholars pursued from a political philosophy.