And then one babbles — 'if only I could bear it, or the worst of it, or any of it, instead of her.' But one can't tell how serious that bid is, for nothing is staked on it. If it suddenly became a real possibility, then, for the first time, we should discover how seriously we had meant it. But is it ever allowed?
It was allowed to One, we are told, and I find I can now believe again, that He has done vicariously whatever can be done. He replies to our babble, 'you cannot and dare not. I could and dared.'
-C.S. Lewis, A Grief Observed