Mind and Dreams

A dream is considered as a series of thoughts, images and sensations occurring in a person's mind during sleep. The mind is the element of a person that enables them to be aware of the world and their experiences. It's the faculty of consciousness. Sleep is a condition in which the nervous system is inactive. Total unconsciousness. Therefore dreams are experienced by the part of ourselves that is not physical. Did we say it's the Mind that creates such experience?  Yes, we did. Did we say that the Mind is consciousness? Yes, we did. Now, if consciousness is the state of being aware of one's surroundings, how can the "mind" experience something that is not happening in the physical world, the only one where we can consciously exist? Is consciousness experiencing unconsciousness? Can the mind experience thoughts and feelings in a world that is not our own, that is not even real?  Does the mind have a reality on a plane of existence that is beyond our physical senses? Shakespeare wrote, "We are such stuff as dreams are made on" (The Tempest, act 4, scene 1). What are dreams made on? What is the stuff "we" are made on?