How is sexuality related to love?
Sexuality must not be separated from love; they must go together. The sexual encounter requires the framework of a true, dependable love. When sexuality is separated from love and is sought only for the sake of satisfaction, one destroys the meaning of the sexual union of man and woman. Sexual union is the most beautiful bodily, sensual expression of love. People who look for sex without love are lying, because the closeness of their bodies does not correspond to the closeness of their hearts. Someone who does not take his own body language at its word does lasting damage to body and soul. Sex then becomes inhuman; it is degraded to a means of obtaining pleasure and degenerates into a commodity. Only committed, enduring love in marriage creates a space for sexuality that is experienced in a human way and brings lasting happiness.
What is chaste love? Why should a Christian live a chaste life?
A chaste love is a love that defends itself against all the internal and external forces that might destroy it. That person is chaste who has consciously accepted his sexuality and integrated it well into his personality. Chastity and continence are not the same thing. Someone who has an active sex life in marriage must be chaste, too. A person acts chastely when his bodily activity is the expression of dependable, faithful love. Chastity must not be confused with prudishness. A person who lives chastely is not the plaything of his lusts but, rather, lives his sexuality deliberately, motivated by love, and as an expression of that love. Unchaste behavior weakens love and obscures its meaning. The Catholic Church advocates a holisticecological approach to sexuality. This includes sexual pleasure, which is something good and beautiful; personal love; and fruitfulness, which means openness to having children. It is the understanding of the Catholic Church that these three aspects of sexuality belong together. Now if a man has one woman for sexual pleasure, a second to whom he writes love poetry, and a third with whom to have children, then he is exploiting all three and really loves none of them.