When people are nervous or stressed, there is a great chance of sleeping, dreaming and having nightmares. This is due to the stress response of the brain. Under uncomfortable conditions, the brain will receive our feelings of anxiety and fear, coupled with the illusion ability of the right brain, when we enter the unconscious, that is, sleep, we will present the most realistic picture of our emotions.
These pictures may be based on some scenes we see in our daily life, or they may be our own imagination through something. For example, in the dream about snakes, maybe I saw something about snakes recently, or maybe I came into contact with these things at some time, only to show them in my restless sleep. There is nothing strange about this, as long as you pay attention to rest and relax, keep enough sleep and ensure the normal operation of your body function.