Cobb: You got the basic layout. Bookstore, cafe, almost everything else is here too.
Ariadne: Who are the people?
Cobb: Projections of my subconscious.
Ariadne: Yours?
Cobb: Yes. Remember, you are the dreamer, you build this world. I am the subject, my mind populates it. You can literally talk to my subconscious. That's one of the ways we extract information from the subject.
Ariadne: How else do you do it?
Cobb: By creating something secure, like a bank vault or a jail. The mind automatically fills it with information it's trying to protect. Understand?
Ariadne: Then you break in and steal it?
Cobb: Well...
Ariadne: I guess I thought that the dream space would be all about the visual. But it's more about a feel of it. My question is what happens when you start messing with the physics of it all...?
[folds city on top of itself]
Ariadne: It's something, isn't it?
Cobb: Yes, it is.