Body and function "is a pair of basic categories in classical Chinese philosophy, with three main meanings: the first refers to the relationship between form, substance, and its function, function, and attribute; The second type refers to the relationship between essence and phenomenon, as well as between basis and expression; The third type refers to the relationship between fundamental principles and specific methods. Regardless of its meaning, in the relationship between "body" and "use", "body" is the foundation and fundamental, "use" is the function and utility, and depends on "body". The excellent traditional Chinese culture emphasizes the integration of physical and practical aspects, emphasizing the principle of "unity of physical and practical aspects" and "one source of physical and practical aspects". With the development of the times, "Ming Ti Da Yong" has been continuously endowed with new connotations, and the category of "Ti Yong" also reflects the dialectical relationship between theory and practice. Continuously promoting theoretical innovation based on practice and promoting positive interaction between theory and practice is a fine tradition of our party. For the first time, Marxism placed culture on the basis of historical materialism, promoting a historic transformation of human cultural concepts. For more than a hundred years, the CPC has continuously promoted the sinicization and modernization of Marxist cultural theory. For example, creatively combining cultural confidence with road confidence, theoretical confidence, and institutional confidence as the "four confidences" of socialism with Chinese characteristics, incorporating the adherence to the socialist core value system into the basic strategy of adhering to and developing socialism with Chinese characteristics in the new era, and clearly proposing major innovative viewpoints such as adhering to the Party's cultural leadership, deeply understanding the "two combinations", and shouldering new cultural missions, Propose major tasks for building modern civilization of the Chinese nation, and so on. The value of theory lies in guiding practice. With the proposal of a series of new ideas, viewpoints, and judgments, targeted measures have emerged to establish and uphold the guiding position of Marxism in the field of ideology