心得
こころえ · kokoroe · JLPT N1 · noun
cognition
📚 心 (heart/mind) + 得 (gain): knowledge your heart gains through experience
Refers to know-how or lessons learned from practice, like personal tips. Kokoro means heart or mind, and e means gain, so it is what you gain in your heart.
心 — pictograph of a heart with chambers and aorta
心 is a pictograph showing a stylized heart, with strokes representing the organ's chambers and the aorta at the top. Originally meaning the physical heart, it broadened to cover mind, feelings, and intentions, since ancient Chinese thought located thinking and emotion in the heart.
得 — 彳 (step) + 旦 (sun/day) + 寸 (hand)
Originally depicted a hand 寸 reaching for a cowrie shell 貝 (later simplified to 旦), with 彳 'step' added to show going out and obtaining something. The core meaning is 'to get' or 'obtain'. The reading děi extends this to 'must/have to' — what one is obliged to get done.