It was presumably the reason we were brought here in the first place, if the Coven's theories hold any water.

[The ability of the Coven to correctly predict and explain things is tenuous at best, but there's been no other plausible explanation for the Mirrorbound beyond the frustratingly nihilistic "just because."]

If it is coming to an end, I suppose I should feel happy. And I do. But part of me is also... sad. And afraid.