밖: 문 门/門, 안: 불순종 屰(비뚤어져 자라는 식물 艹-싹 屮에 결함 欠이 있어 불순종하다). Outside: gate 门/ 門, inside: disobedient 屰 (A plant's 艹 shoot 屮 that grows crooked has a lack 欠 and is disobedient.)
니모닉
(문이 막히다) 문이 '불순종하다': 결함이 있다. (The door is stuck) The gate is 'disobedient': It has a fault.
