Hmm, lets see... how can I fuck humankind over everywhichway and then make them act against all their inborn impulses and needs?
I got it. I won't let them know what happens after their life is done. And, I'll make an afterlife contingent on believing in me only because of a story. Kind of like someone believes in the tooth fairy. But, adults will need to believe in the crazy story too! The story will make no rational sense at all.