sincerity; wholeheartedness
A somewhat formal or literary term for sincere, earnest feeling. Often used in contexts of devotion, prayer, or heartfelt effort.
Praying with sincerity brings peace of mind.
彼の至心のこもった言葉に感動した。
I was moved by his words filled with sincerity.
Composed of 至 (to arrive, extreme) and 心 (heart, mind), suggesting a heart that has reached its utmost. The exact historical derivation is uncertain, but the compound is conventionally associated with the meaning of utmost sincerity.