I know you all have probably got this in your email box, but it applies to me so I'd thought I'd put my version here.
There is this rock. It's a massive rock. God says push on the rock. You push on the rock and after a while you ask God, "What are you doing?"
God says, "Don't worry about moving the rock, if I had wanted it moved I would have moved it myself. I never intended for you to move it, I just wanted you to push."
You ask, "But to what end?"
God answers, "The purpose was to build your muscles for the next task ahead of you."
BTW This is not another Sisyphus lesson. We can talk about that if you wish, but I put it here to say what it says. And I don't think it says God has willed us to fatalism.