I thought the hero found hanging upon some oak of Dodona an ancient mask, where perhaps there lingered something of Egypt, and that he changed it to his fancy, touching it a little here and there, gilding the eyebrows or putting a gilt line where the cheekbone comes; that when at last he looked out of its eyes he knew another's breath came and went within his breath upon the carven lips, and that his eyes were upon the instant fixed upon a visionary world: how else could the god have come to us in the forest? The good, unlearned books say that He who keeps the distant stars within His fold comes without intermediary, but Plutarch's precepts and the experience of old women in Soho, ministering their witchcraft to servant girls at a shilling apiece, will have it that a strange living man may win for Daemon an illustrious dead man; but now I add another thought: the Daemon comes not as like to like but seeking its own opposite, for man and Daemon feed the hunger in one another's hearts. Because the ghost is simple, the man heterogeneous and confused, they are but knit together when the man has found a mask whose lineaments permit the expression of all the man most lacks, and it may be dreads, and of that only.
The more insatiable in all desire, the more resolute to refuse deception or an easy victory, the more close will be the bond, the more violent and definite the antipathy; and I even wonder if there may not be some secret communion, some whispering in the dark between Daemon and sweetheart.
I sometimes fence for half-an-hour at the day's end, and when I close my eyes upon the pillow I see a foil playing before me, the button to my face. We meet always in the deep of the mind, whatever our work, wherever our reverie carries us, that other Bill.
Per Amica Silentia Lunae, by William Butler Yeats [excerpts]