密闭门

• 宓(quiet; hidden)PHONETIC
• 山(mountain (pictograph))ASSOCIATIVE

A secluded place like a mountain surrounded and concealed hides all secrets.

• 門(door; leaf)RADICAL
• 才(talent; just now)PHONETIC

When you close the door, the talent inside cannot escape outside.

• 門(door leaf; wing (of a door))ASSOCIATIVE

The character 門 depicts two symmetrical door panels facing each other, symbolizing an entrance or gate.