While I ended up being slightly ambivalent on the book overall I LOVED this backstory for the universe and how it combined very abstract sci-fi ideas with gods and myth. Anything else like it? I'm trying to write a story that's similar. (Honestly, it doesn't even need to be this specific, I'm also just open to anything that has an interesting take on the beginning of the universe!)
Excerpt from the TVtropes page since I'm writing this in a rush and can't find excerpts/quotes from the book:
Born out of the flux of Primordial Chaos, the angels have erected Heaven as a bastion against a hostile universe. Even so, the Cacoastrum (the stuff of chaos) periodically grows violent and assails the walls of Heaven in great Waves, which the angels must fight to keep back. At the same time, the Waves are the only way angels may reproduce, for they force their will upon the flux as they fight and it mimics them in response. Now, during a lull after the Third Wave, the angelic lord Yaweh sets forth an ambitious Plan to erect a permanent safe haven against the chaos. Many may die in the creation, but it is fewer than will die in another Wave.
by jesster_0