“Inner mysteries” in Japanese
Short answer
Inner mysteries in Japanese is “蘊奥” (unou). Full meaning: inner mysteries (of a field of study), secrets.
Other ways to say “Inner mysteries” in Japanese
奥義
okugi secret techniques (of an art or skill), inner mysteries, essence, quintessence, heart
深奥
shinou depths (of an art, one's mind, etc.), heart, inner mysteries; profound, deep, esoteric, abstruse
薀奥
unnou inner mysteries (of a field of study), secrets
奥儀
ougi secret techniques (of an art or skill), inner mysteries, essence, quintessence, heart
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