"It just rips that filtering mechanism away for a few minutes, and for a few minutes, you're immersed in sort of this raw data sphere of input, of sensory input, of memories, of associations. I mean, it seems like the brain builds reality out of these things: what you're experiencing, what you have experienced, and how you associate and synthesize these things together to tell yourself a story, essentially, about what's going on, where you are in space and time."