The idea of enlightened insight" is the key to Zhuang Zi's philosophy and its content includes the essences of epistemology, metaphysics and the doctrine of cultivation. In this paper, we try to analyze Zhuang Zi's views about life, the universe, and nature with the wisdom of inner reflection, review the source and drive of his enlightened insight, and understand in terms of the cultivation of Xu (the stage of emptiness) how his doctrine of cultivation explains the universal law-Tao-to form the foundation of self-transcendence. Besides, Taoists propose the idea of settling down the mind and clarifying the heart, which starts with reserving and improving the mind and then presents no-action, true nature, and preservation of the original state. The writer presumes that all these features revolve around the core of Zhunag's thought-enlightened insight, expecting that, through the comparison between Confucianism and Taoism, we can highlight how the state of no preconceptions brings us true knowledge, which is a way to cultivate ourselves and therefore create the moral value. In fact, the state of no preconceptions created by the enlightened insight can accept and generate anything, and such a state will provide us with clear understanding the lead us to true wisdom. Such wisdom is us with clear understanding and lead us to true wisdom. Such wisdom is not only the open door to the being of infinity but also the principles not only the open door to the being of infinity but also the principles whereby we achieve self-transcendence and the transcendence of others (Liang Xing). And the possibility of knowledge as a virtue will be advanced through the writer's description. The improvement of humanity must rely on the introspective moral awareness, and the development of the state of emptiness will give us authentic standards. As long as one has the unique wisdom about Tao, his or her operation, will be absorbed into the operation of the universe, and the Heaven's principle of oneness between the universe and oneself will be followed.