Dating and purity
Everything in your relationship gets some of its charge from the uncertainty, the unknown. Married sex is exciting, but its excitements are very different, and much more tender, than the instability of the hook-up scene.If we use pornography, we also wrench sex out of the relational context in which God intended it to take place.If we use porn, we learn something false: That sex is about immediate gratification.By chastity, I mean conforming your body and your sexual self to God's vision of human sexuality as laid out in Scripture and articulated by church tradition — for married people, fidelity, and for unmarried people, abstinence. Simple: It's difficult; and now, even more so than when Lewis wrote, we live in a society that does not give us much support for living chastely.
Indeed, American culture seems determined to mock and ridicule chastity as much as possible.
Chastity is important because it involves how we comport our bodies — and through faith, our bodies are no longer our own.