奧

Concrete/Spatial: The innermost part of a building (a deep interior chamber or sanctuary) or the inner folds and hems of a garment.

Obscure/Hidden: Recondite or arcane; mystery resulting from being hidden from view rather than an inherent metaphysical quality.

Profound/Essential: The "hidden core" or essence of a matter, frequently used in philosophical contexts to denote the secret meaning of a doctrine (e.g., 奧義).

Noun: The innermost part; the hidden core or essence.

Adjective: Obscure, profound, or difficult to penetrate. In compounds, it typically modifies conceptual terms (such as principles or meanings) to signal a shift from surface-level discussion to underlying architecture.

vs. 深 (shēn): While //shēn// typically refers to vertical depth, intensity, or emotional depth, 奧 is structural, denoting something tucked deep inside a space or system.

vs. 玄 (xuán): While //xuán// suggests a cosmic, primordial, or metaphysical mystery, 奧 implies a sequestered mystery—something hidden within a logic, building, or text.

Simplified variant: U+5965.

Combines the "roof" radical (宀) with elements suggesting clothing (衣), creating imagery of something enclosed and folded inward; this sense of "interiority" or "folding" serves as the primary semantic anchor.