one's heart; one's mind; one's bosom
Literary word for one's inner thoughts, feelings, or heart. Not used in everyday conversation; appears in written language, poetry, or formal contexts.
The thoughts passing through his mind were complicated.
Those words were deeply engraved in my heart.
Also a literary word for one's heart/mind, but slightly more common than 胸裏.
Standard kanji form for this literary word.
Variant kanji form; 裡 is an older form of 裏.
Compound of 胸 (chest, heart) and 裏 (inside, back), literally 'inside the chest'. The exact historical derivation is uncertain, but the word has been used in literary Japanese to refer to one's inner thoughts and feelings.