Your dreams are not just the rearrangement of memory. They are the vibrations of your consciousness. Guide them and go for the higher one.
I'm a filmmaker, but my working procedures are different. All my basic structuring is done during the filming. You know, how long I keep the shot, the exposure or the speed - slower or faster, etc. That's structuring. And then there is a second stage of structuring that comes later when I begin to put those pieces together.