There is a limit to how hard one can strain against a mythology. Sexuality, the font of human life, is fickle, mysterious, contingent. It is not always subject to will, to put it mildly, and sometimes seems to blow in like the weather. A mythology that moralizes sex may do something to shelter a delicate flame. It is hard to say exactly what, but there must be a reason that flourishing, fertile, creative societies tend to be conservative about sex.
