I believe that, when dreaming 🛌, the human brain does not magically make up figures and locations out of nothing. That those figures, people, places, and emotions derive from the physical act of someone having actually been to those places or seen those people. That the mind may even build your dream like one would build with blocks–taking pieces of information to create a world you have never seen, but that is completely recognizable. Those blocks have to come from somewhere, and if we are our memories then our memories are the blocks.