"I remember being at a shoreline, watching a little grey fish heave itself up on the beach. And an older brother saying, 'Don't step on that fish, Castiel, big plans for that fish.' I remember the Tower of Babel - all 37 feet of it, which I suppose was impressive at the time. And when it fell they howled, Divine Wrath! But come on, dried dung can only be stacked so high."