Excerpt 2 of 10 from “The Weight of Glory”
[The schoolboy] has to begin by working for marks, or to escape punishment, or to please his parents, or, at best, in the hope of a future good which he cannot at present imagine or desire. His position, therefore, bears a certain resemblance to that of the mercenary; the reward he is going to get will, in actual fact, be a natural or proper reward, but he will not know that till he has got it. Of course, he gets it gradually; enjoyment creeps in upon the mere drudgery, and nobody could point to a day or an hour when the one ceased and the other began. But it is just in so far as he approaches the reward that he becomes able to desire it for its own sake; indeed, the power of so desiring it is itself a preliminary reward.
The Christian, in relation to heaven, is in much the same position as this schoolboy. Those who have attained everlasting life in the vision of God doubtless know very well that it is no mere bribe, but the very consummation of their earthly discipleship; but we who have not yet attained it cannot know this in the same way, and cannot even begin to know it at all except by continuing to obey and finding the first reward of our obedience in our increasing power to desire the ultimate reward. Just in proportion as the desire grows, our fear lest it should be a mercenary desire will die away and finally be recognized as an absurdity. But probably this will not, for most of us, happen in a day; poetry replaces grammar, gospel replaces law, longing transforms obedience as gradually as the tide lifts a grounded ship.
C.S. Lewis, “The Weight of Glory,” a sermon preached at the Church of St. Mary the Virgin, Oxford on June 8, 1941 and published in most recently in C.S. Lewis Essay Collection: Faith, Christianity and the Church.