A Dialectical Analysis of the Tripartite Qualities of 'Dao' in the Guanzi: Intricacy, Expansion, and Solidity
This paper provides an in-depth interpretation of the opening discourse on 'Dao' in the *Guanzi: Neiye*, analyzing the connotations and dialectical unity of its tripartite qualities: 'intricacy necessitates density, expansion necessitates ease, and solidity necessitates firmness.' It further explores their significance for self-cultivation and mental governance within the context of Pre-Qin and ancient thought.

VI. A Fundamental Question: Does the Acme of Vital Energy Have an Upper Limit$31
Neiye speaks of "the acme of vital energy," but does not explicitly state whether this "acme" has an upper limit. Can vital energy be refined infinitely$32 Or is there an ultimate limit$33
From the logic of pre-Qin Daoism, "acme" is Dao. When vital energy is refined to its utmost, it returns to Dao. And Dao is infinite—"The Dao is empty, yet its use is inexhaustible" (Laozi, Chapter Four), therefore the refinement of vital energy is theoretically infinite.
However, from a practical standpoint, human life is finite, and the physical body is finite. Therefore, the cultivation of vital energy will inevitably have a limit in actual practice. This limit varies from person to person, depending on the cultivator's talent, practice, environment, and other factors.
Regardless, the core assertion of Neiye is clear: humans can achieve cognitive realms beyond the ordinary by cultivating vital energy to its extreme, and this transcendence is natural and explainable, requiring no recourse to spirits and ghosts.