Acho que eshier está correto e este é O Livro da Noite com a Lua de Diane Duane. Tem uma referência ao Sol ser o olho de Deus que corresponde exatamente à sua descrição:
The older name for the Sun had been Rhoua’i’th, Rhoua’s Eye: the only one of Her eyes that the world saw, or would see, at least for a good while yet. That one open Eye saw thoughts, saw hearts, knew the realities beneath external seemings. The other Eye saw those and everything else as well; but no one saw it. It would not open until matter was needed no more, and in its opening, all solid things would fade like sleep from an opening eye. A blink or two, and everything that still existed would be revealed in true form, perhaps final form—though that was uncertain, for the gathered knowledge of matters wizardly, which cat-wizards called The Gaze of Rhoua’s Eye, said little about time after the Last Time or about how existence would go after Existence, in terms of matter, past its sell-by date. But there was little need to worry about it just yet while Rhoua still winked. The day the wink turned to a two-eyed gaze ... then would be the time to be concerned.