Duke Zhou, what's the reason for dream of the centipede and the snake?

This kind of situation is mostly a dream when there is urgency in the middle of the night. There is another situation, that is, I have encountered some troubles recently, which is quite annoying, but I can't get rid of it, and my heart has been bumpy. When sleeping, the subconscious processes the results. It can be explained that "centipede" is an annoyance in real life, but it may also be stimulated: for example, I have really seen annoying animals or horror movies. These things have always been annoying, but they can be encountered in life and form a certain shadow in my heart. Everyone is like this. Once disgusting things appear, they will cause uncomfortable feelings, and there is always a feeling of escape. For reference only.