心しん骨こつ

noun

body and soul; mind and body

Refers to the whole of one's being, encompassing both physical and mental aspects. Often used in contexts of total dedication or effort.

• 彼かれは心しん骨こつを傾かたむけてその研けん究きゅうに打うち込こんだ。

  He devoted himself body and soul to that research.

noun

bottom of one's heart; depth of one's heart

Indicates the innermost feelings or true intentions. Often used in expressions like 心骨から (from the bottom of one's heart).

• 彼かれの言こと葉ばは心しん骨こつに染しみた。

  His words touched the bottom of my heart.