| Domain | Topic |
|---|---|
| I Ching | Hexagram 4: Meng (Youthful Folly) |
| Linguistics | Semantics: Semantic Stasis & Apathy |
| Numerology | Number 4 |
| Psychology and Cognitive Science | Affective Regulation: Emotional Withdrawal & Anhedonia |
| Sacred Geometry | The Tetrad (Square / Cube) |