The "Orb" represents life and the "Circle is something we all must travel. Pretty deep huh. Oh and I've also got some beachfront property here in Illinois I'll sell REAL cheap!
Cool colours and shape. You seem to have something in far left, I don't think it should be there. All in all nice image, but it's not quite what I hope from a wallpaper.
I'm sorry, it looks like an alien skull with a bright light of one's mind stuck in to it! Great image; This one should be made into a Glow-in-the-Dark poster, 28x36 and sold on college campuses. I think it'd go well. :)