The civilization of use is a culture in which the person becomes an object to be used as things are used. The civilization of created when "gift" is separated from sexuality. The building blocks of the civilization of use are contraception, abortion and homosexuality, all of which are attacks against life, children, marriage and family. The Church is the "gatekeeper" which St. Mark speaks about in Mark 13. This "gatekeeper" keeps watch and is the sole voice of truth in a culture of lies and relativism.