Metaphysics in the Wei-Jin period (220-420 CE) represents a significant phase in the history of Chinese thought and played a crucial role in transforming the intellectual orientation of the Chinese nation.The modes of thinking and key propositions of Wei-Jin metaphysics exerted a profound influence on the aesthetic concepts of literature and art during and after that period.For instance, the dialectic of “root and branch, being and non-being” largely reshaped people’s views on literature and art, directing creative practice away from mere external appearances or conventional artistic expression toward the creation of an aesthetic space that transcends imagery.The “debate on words and meanings,” as the fundamental method for constructing the metaphysical system, contains the philosophical idea that “words cannot fully express meanings.” This idea was transformed in artistic creation into an aesthetic pursuit of “meaning beyond words.” The metaphysical thinking of the “debate on words and meanings” also greatly expanded the constructive function of artistic media.Within Wei-Jin metaphysics, “nature” (ziran) is a highly important philosophical category.Metaphysicians such as Wang Bi (王弼), Ji Kang (嵇康), and Guo Xiang (郭象) all articulated “nature” as a fundamental concept.This metaphysical view of nature greatly influenced the aesthetic concepts of literature and art, becoming an aesthetic ideal that people revered and practiced.