According to Milorad Pavic in the Dictionary of the Khazars, God uses nouns, while it is given to humans only to use verbs. Which, I suppose, means that we, unlike the Increate, are only capable of utilizing the nouns we are given. The nouns, as Gene Wolfe claims in The Book of the New Sun, are the symbols that shape our existence, and their reality is something that transcends our own.