We can find the theme of ”returning to the nature and being oneself” prevalent in Tao Yuanming's works. He has an extraordinary sensitivity to time and death. He has the psychological characteristics of an ”old soul” according to spiritual alchemy's vision. First, I describe the meaning of the term ”old soul” from the content in his works and make it clear in a religious dimension. From the point of view of religion, I explain why there are so many mythological images in his works. Second, I interpret M Record of Peach Blossom Spring, with Poem from the perspective of mythology and psychology. In order to make the interpretation systematically mythological, I reveal the archetypal images and narrative structures in the text. Third, I distinguish the paradise of Tao Yuanming from mythical paradise and Taoist fairy paradise, which, in my opinion, are better called ”paradises of all natural beings-in-themselves,” based on Laozi4ti4 and Zhuangzi4J4 conceptions. Fourth, this paper also makes a fundamental distinction between ”arcadia” and ”utopia” according to the different categories of nature and politics. Finally, I discover what supports the idea that Tao Yuanming's paradise corresponds to his new metaphysical works.