'If God created the body and sexual union to proclaim his own eternal mystery of love, why do we not typically see them in this profound way? For example, when you hear the word "sex," what generally comes to mind? Is it the "great mystery" of the one-flesh union as a foreshadowing of Christ's union with the Church, or something, shall we say, a little less sacred?
Ponder this for a moment. If the body and sex are meant to proclaim our union with God, and if there is an enemy who wants to separate us from God, what do you think he is going to attack? If we want to know what is most sacred in this world, all we need to do is look for what is most violently profaned.'
Christopher West, Theology of the Body for Beginners, p.11.