Why do you love the woman you're in love with? Because she is. And that, after all, is God's own definition of Himself; I am that I am. The girl is who she is. Some of her isness spills over and impregnates the entire universe. Objects and events cease to be mere representations of classes and become their own uniqueness; cease to be illustrations of verbal abstractions and become fully concrete. Then you stop being in love, and the universe collapses, with an almost audible squeak of derision, into its normal insignificance.
