When the Voice found that she had spent nearly all of her words on creation, she locked the last of them away and has been silent since. Whole traditions of scholars have since been trying to guess these words, looking on mountaintops, under the earth, in stories, their own minds.
Some fear it, the End, afraid of the conclusion. But others want to bring it about, saying the words aren't fixed and She will one day return, read aloud the most pleasing of guesses, and creation will be complete.