得中

1. Structural/Positional: To occupy the middle position within a defined set, hierarchy, or grouping.

2. Qualitative/Equilibrative: To achieve a state of balance, moderation, or poise (avoidance of extremes).

3. Telic: To successfully hit a target or achieve the exact degree of response required by circumstances.

Verb-Object construction: 得 (verb: to obtain/achieve) + 中 (object: center/middle/mark).

• Attainment vs. State: The presence of 得 implies an active alignment, achievement, or specific qualification rather than a passive state of being in the center.
• Nature of the Center: The "center" may be geometric (a literal middle point), hierarchical (a position of mediation or authority), or ethical (a state of moderation).

In the Yi Jing, this is often a technical designation for lines in the second or fifth positions. In such contexts, "obtaining the center" typically denotes stability and efficacy.