I believe the actual nature of dreams are not as we remember them. When we recall a dream and makes it a conscious thing we interpret it as we interpret other r

I believe the actual nature of dreams are not as we remember them. When we recall a dream and makes it a conscious thing we interpret it as we interpret other recollections by making a coherent story of the basic memory. So I dont’t think we can know what the brain process actually were when dreaming. Different things may coalesce into a dream process. And when it is recalled and interpreted it is formed into a meaningful but relatively arbitrary direction.