闲聊天

• 門(door leaf; door panel)RADICAL
• 木(tree; wood)ASSOCIATIVE

A wooden stick blocking the doorway means leisure and having nothing to do.

• 耳(ear)RADICAL
• 卯(hour of the Cat (Vietnamese zodiac); latch; bolt)PHONETIC

Idle talk is when ears listen to people speaking back and forth like a pivot pin fitting together.

• 大(adult; large (pictographic))RADICAL
• 一(one; top)ASSOCIATIVE

The sky is the vast, boundless expanse that lies above human beings.