Four Dimensional Dream

In medicine, the dream mirror is the process in which the human consciousness reassembles the fragments of memories, emotions, and subconsciousness during the day while the body is resting. Dreams are actually called souls. Is there a space that we cannot see in reality that is only used to control our dreaming consciousness? The male protagonist Shi Yu accidentally had a precognitive dream and discovered this space, and also saw some life forms called nightmares.