I don't mean to sound negative or anything because after all it is all opinion. However you say Brain and spirit are one and the same as if it is some kind of scientific fact.

OP is trying to offer a differing perspective of dreams, and whilst I may not agree 100% with what he says I believe that these "alternative" theories and ideas are what will ultimately help us understand just what is happening.

The brain is a construct of the universe. It is made from all the molecules and atoms and everything else which the universe has created and from which occur naturally. Our dreams are a consequence of this construct. Which kind of means the Universe is dreaming if we are we actually ARE one and the same,