Dreams are not a sign of the future, but a backlog of emotions in your past life, not meaningless.
What is Mengmeng? It is a process in which real emotions are expressed defenseless in the brain after being suppressed. That is to say, it is not without reason. It is a way to understand your real emotions.
Dreaming often does make you feel tired, but dreaming doesn't mean you haven't slept well. Dreams appear in deep sleep, which is eye movement sleep. In fact, in a complete night's sleep, there will be several dreams, but few will leave an impression.
When the chest is pressed, it will produce physical feelings, which may indeed cause dreams.