What's the point of dreaming that dad was hit in the head by a beer bottle and saw blood?

I think about it every day and dream every night. Have you ever had a violent scene recently, and fear led to dreams? Or I haven't seen my father for a long time or I miss him too much. These are all psychological factors. But it's good to see blood in a dream. Example: I dreamed that I had no blood and lost my teeth. My mental state was definitely bad in recent days, which may be related to physiological factors.