"Same thing, different angle. Think of it more like nesting dolls than a string of beads. Any time you go from one dreamer's subconscious to another you're switching levels, regardless of how you do it. And you still have to go back the same way, through the levels."
He shrugged, "Most people stick with the PASIV even in a dream because it usually makes the most sense to everyone involved, but sometimes there's a job that needs to be more subtle. Elevators and staircases are good for that."