“The sacrament of Matrimony signifies the union of Christ and the Church. It gives spouses the grace to love each other with the love with which Christ has loved his Church; the grace of the sacrament thus perfects the human love of the spouses, strengthens their indissoluble unity, and sanctifies them on the way to eternal life (cf. Council of Trent: DS 1799).”
(Catechism of the Catholic Church, 1661)
People form many kinds of relationships in human society. Parents and children, siblings, co-workers, friends, business contracts: all represent a relationship between two or more people. But marriage is a unique relationship between two people, for it is a voluntary, exclusive, life-long relationship between a man and a woman that can actually produce other people (i.e. children).
Today there are serious attempts to redefine marriage, and to exalt or at least excuse many actions that are antithetical to marriage. Examples include same-sex unions, artificial contraception, divorce, and adultery. As Catholics we must be faithful to the true nature of marriage: a reflection of God’s own free, total, faithful and fruitful Love. For it is only by reflecting God’s Love that we will have strong marriages, strong families and thus a strong society.