Almost every developing species had a creation myth buried somewhere in its past, even if by the time they'd become space-faring it was no more than a quaint and dusty irrelevance (though, granted, some were downright embarrassing). Talking utter drivel about thunderclouds having sex with the sun, lonely old sadists inventing something to amuse themselves with, a big fish spawning the stars, planets, moons and your own ever-so-special People - or whatever other nonsense had wandered into the most likely feverish mind of the enthusiast who had come up with the idea in the first place - at least showed you were interested in trying to provide an explanation for the world around you, and so was generally held to be a promising first step towards coming up with the belief system that provably worked and genuinely did produce miracles: reason, science and technology.