inner mysteries; esoteric secrets
Literary term for the profound, hidden principles or deepest secrets of a field of study, art, or tradition. Often used in contexts like 蘊奥を究める (to master the inner mysteries).
After many years of training, he mastered the inner mysteries of the tea ceremony.
Literary kanji spelling; the reading うんのう is standard. The alternate reading うんおう is archaic.
From Chinese 蘊奧, composed of 蘊 (accumulate, store) and 奧 (inner recesses, profound). The exact historical derivation is uncertain; the word is used in classical Japanese texts to refer to the deepest principles of a discipline.