関心
かんしん · kanshin · JLPT N3 · noun
interest
❤️ 関心 = connection + heart: what your heart is tied to
関 means barrier or connection, as in 関係 (relationship). 心 means heart or mind. Your interest or concern is whatever your heart is connected to. Don't mix it up with 感心 (admiration), which sounds the same.
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.