Yeah, if anyone has any idea of what these lyrics mean, I'd love to hear it. I can kind of dig a thing or two out of the chorus due to the fact that Falling Up is a Christian group.
I suspect the artist is talking about how all he's ever known is sin (Now I'll look away from all I've seen, It's all I've known), but once saved by God (but now I've changed), Believers are to turn and run from the darkness, sin, etc. (It's way to dark, it hurts my eyes. I'll look away, I'll run away).