Dreams are the sleeping routine for most of humanity. One takes a physical rest from the world and from their fears and desires, only to encounter these same elements of existence in magnified or softened versions. Distorted universes and members of one's life, sometimes added to old regrets and wishes, or simply the absurdity of an action that one would never imagine doing, but whose consolidation is quite realistic during the experience.
It is the state of consciousness in which one is separated from visions of the palpable world and closest to reflections of the unconscious. Yet we can hardly conceive anything close to many of them being a part of us.
Many an art form has explored the theme, and cinema has done it in various versions and using various strategies. Some of them envision dreams as the paradise of the psyche, others prefer to engage in the representations of nightmares, or suffocating experiences full of symbolisms and self-reflections.