Listened to KQED interview with Lizzie Stark, the author of Egg: A Dozen Ovatures. She mentioned the world/cosmic egg myth motif and that her oophorectomy triggered some too much/not enough cowbell (see SNL's 2000 Chris Walken/Will Ferrell cowbell skit). While looking for the book online, I stumbled upon Andy Weir's wonderful short story The Egg, the best ontological syncretic myth I ever read.