Tonight, I’ll show you how dreams are prepared. People think it’s a very simple and easy process but it’s a bit more complicated than that. As you can see, a very delicate combination of complex ingredients is the key. First, we put in some random thoughts. And then, we add a little bit of reminiscences of the day… mixed with some memories from the past. That’s for two people. Love, friendships, relationships… and all those “ships”, together with songs you heard during the day, things you saw, and also, uh… personal… Okay, I think it’s one. 

The Science of Sleep | Michel Gondry | 2006