中正

A synthesis of spatial centrality and normative alignment, describing a state where position and propriety coincide. This encompasses equilibrium (the avoidance of extremes), the propriety of one's structural or hierarchical position, moral rectitude tempered by moderation, and precision in achieving a required mark.

May function as an attributive modifier, a predicate, or an abstract noun referring to the quality of centered-correctness.

Often contrasted with 偏 (biased/slanting) or states of excess and deficiency. The term distinguishes between functional alignment (structural calibration) and moral uprightness.

Avoid reducing the term to a purely spatial description (e.g., "central"); the presence of 正 requires an evaluative component. In divinatory contexts, specifically within the logic of the Yi Jing, it denotes a line that is both centrally positioned (the second or fifth line) and possesses a polarity corresponding to that position.