This essay will aim at a discussion of how Chuang Tzu breaks an "opposed" value system to the "absolute", through the mental stupefacation of human existence. It especially focuses on Chuang Tzu's unification of duality into an unified mode of thinking and his linguistic form of expression. It will explore how Chuang tzu passes through the dialect of spiritual passage and development using paradox in order to express the boundary between Chuang Tsu's profound theory.