As an open-minded individual, I have always been intrigued by the concept of the human brian, especially recently (for around 2 months), the concept of achieving lucidity while dreaming. An intriguing concept, and your project seems to do a decent job of portraying it.
Also, a few comments on the game itself: The "Cave" did not feel like a cave. The "thousand-foot-abyss" thing only works for certain areas. I like closed areas, as they feel more cave-like. Also, after that excellent scene involving the three, floating unconcious boys, the good ol' RTAB caused a critical error. RTAB is </3.
So far, though: I like it. Well done, very fluent, nice storytelling, a minor issue with seaming on the intro background, and an intriguing concept overall. A+ for Effort, A+ For Potential.
Good luck,
Eiji Shinsoto