I've read through most of that book, and I don't remember seeing that. It feels like something I'd remember repressing to the deepest darkest depths of my memory forever.
His whole thing is that there's timeless and intuitive truths in the ancient myths of humanity. It's always going to look nuts because the old myths and legends are kind of nuts. The epic of gilgamesh starts with a dude banging a prostitute for a week, and it goes hard with the descriptions.