A concussion is a stunning, damaging, or shattering effect from a hard blow. It could also lead to a brain injury.

Positive: In a dream, a concussion could represent God jarring your mind to get your attention. If you dream of your enemies being concussed, it could represent the Lord fighting your enemies for you.

Negative: Dreaming of yourself suffering a concussion could represent the negative effects of a worldly lifestyle on your mind. A concussion could symbolize that you are in sinful rebellion and you will eventually see the repercussions of it.

(Psalm 110:5-6; Isaiah 1:4-6).