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.

II. Analogy Between "Food" and "Thought"
"Regarding food, it is best not to overeat; regarding thought, it is best not to push it to the extreme."—Comparing diet and thought is not a random analogy but reveals their deep commonality:
- Diet is a bodily need; thought is a mental need—both are fundamental components of life activities.
- Excessive eating harms the body; excessive thought harms the mind—both require moderation.
- The optimal state for eating is "not overeating" (just enough without being full); the optimal state for thought is "not pushing it to the extreme" (just enough without being extreme)—the optimal state for both lies in the subtle balance between satisfaction and excess.
This approach of discussing both body and mind reflects the holistic view of body-mind unity in Neiye—the body and mind are not separate entities but a unified whole connected by Qi. The regulation of the body (eating) and the regulation of the mind (thought) follow the same principle—moderation.