• 黑(black; dark color (depicting a face blackened by smoke and fire))

A face covered by smoke and fire symbolizes the dark black color.

• 上(above; top)
• 卜(divination; insert downward)

Something stuck is what stays on top and cannot come down, blocked from moving.

• 黑(black; dark color (depicting a face blackened by smoke and fire))

A face covered by smoke and fire symbolizes the dark black color.

• 上(above; top)
• 卜(divination; insert downward)

Something stuck is what stays on top and cannot come down, blocked from moving.