This essay discusses the relationship among loneliness, freedom and Zheng Chou-Yu's poetry. There are one spirit, two viewpoints and four aspects connecting his works. He is a wanderer when facing himself, and a chivalrous person while facing society. He holds the sense of "anicca" towards the universe and performs "the most advanced travel of chivalrous person", which is the highest level of freedom, when he is writing poems. This essay then discusses the three dimensional inflextion of Zheng's spirit within the time and space. The ultimate manifestation of this spirit is sacrificing for poetry, for beauty (including sex) and for "one".