Practise the thinking. Keep the judgement.
心 (kokoro): Heart; mind; feelings
こころ
kokoro
Meaning
Heart; mind; feelings
Two original examples
心から感謝しています。
I am grateful from the bottom of my heart.
友だちの言葉が心に残りました。
My friend’s words stayed with me.
Usage and distinctions
心 describes mental or emotional life and translates differently across contexts. The physical organ is usually 心臓（しんぞう）. 心配（しんぱい, worry）illustrates a different reading of the character inside a compound.