C.S. Lewis, from his sermon, “The Weight of Glory”:
In some sense, as dark to the intellect as it is unendurable to the feelings, we can be both banished from the presence of Him who is present everywhere and erased from the knowledge of Him who knows all. We can be left utterly and absolutely outside – repelled, exiled, estranged, finally and unspeakably ignored. On the other had, we can be called in, welcomed, received, acknowledged. We walk every day on the razor edge between these two incredible possibilities. Apparently, then, our lifelong nostalgia, our longing to be reunited with something in the universe from which we now feel cut off, to be on the inside of some door which we have always seen from the outside, is no mere neurotic fancy, but the truest index of our real situation. And to be at last summoned inside would be both glory and honour beyond all our merits and also the healing of that old ache.