If I were to attempt an interpretation, I would say this: your dream-house is already in your brain; your future children are already in your ____, but you have not yet met your future wife. The body and the subconscious attributes labels and faces to the knowable. The unknowable, well…
Dreams are a funny, sometimes weird source of information: I wonder what it says about me that I hardly ever dream (or rather, remember them), and when Ido, they are either mundane coffee-table conversations… or then post-apocalyptic Walking Dead style scenarios, which I have had since I was a child… vá-se lá perceber, não é? ;p