Here as I anticipate the glory of summer, I'm reminded of one of my favorite themes in C. S. Lewis's works: sehnsucht. Sehnsucht is that sense of intense and sweet desire that comes over us suddenly, taking our breath away. It is the longing of wonderful yet intolerable promise. In his preface to The Pilgrim's Regress, Lewis calls it "that unnameable something, desire for which pierces us like a rapier at the smell of a bonfire, the sound of wild ducks flying overhead, the title of The Well at the World's End, the opening lines of Kubla Khan, the morning cobwebs in late summer, or the noise of falling waves." He says,
Though the sense of want is acute and even painful, ... the mere wanting is felt to be somehow a delight. Other desires are felt as pleasures only if satisfaction is expected in the near future: hunger is pleasant only while we know (or believe) that we are soon going to eat. But this desire, even when there is no hope of possible satisfaction, continues to be prized, and even to be preferred to anything else in the world, by those who have once felt it. This hunger is better than any other fullness; this poverty better than all other wealth. And thus it comes about, that if the desire is long absent, it may itself be desired, and that new desiring becomes a new instance of the original desire, though the subject may not at once recognize the fact and thus cries out for his lost youth of soul at the very moment in which he is being rejuvenated. This sounds complicated, but it is simple when we live it. 'Oh to feel as I did then!' we cry; not noticing that even while we say the words the very feeling whose loss we lament is rising again in all its old bitter-sweetness. For this sweet Desire cuts across our ordinary distinctions between wanting and having. To have it is, by definition, a want: to want it, we find, is to have it.