Unlike in English, where “heart” and “mind” are typically separated (emotion vs. logic), 心 kokoro refers to both feelings and thoughts, and even one’s will or intent.
It combines thoughts, feelings, intentions and even morality in a way that the English word “heart” does not, which is probably why the translators of Natsume Soseki’s famous novel Kokoro chose to leave the title untranslated.
Calligraphy by Vicky 