Glass Butterflies

One thing I've learned, is that the world kills you slowly. Without warning, your thrusted into the unknown breathing in painful chemicals and cutting your hands on left over debris. Just what did we expect in the first place? life is full of bumps and cracks in the pavement, it's not something new. Humanity has always had conditions to living in this world; Weak bodies, frail bones, hearts that don't quite work, etc. so, may I ask; What happens when the brain doesn't quite work? Christianity is already hard enough to believe in the first place, so why make it harder? What good with this bring?