禅
ぜん · zen · JLPT N3 · noun
zen
🧘 示 altar + 単 single: single-minded at the altar; dhyāna → chán → zen
The left part 礻 is the altar/spirit radical, used in religious kanji like 神 and 社. The word comes from Sanskrit dhyāna, meaning meditation. Chinese said it as chán, and Japanese made it zen.