The Catechism of the Catholic Church (CCC) teaches that "the purpose of the sacraments is to sanctify men, to build up the Body of Christ and, finally, to give worship to God" [CCC 1123]. The sacraments are not merely symbolic, but actually confer the grace they signify. When we are baptized, the water symbolizes a renewal and washing, but it also truly and really purifies us from sin and restores our souls into communion with God. Because of this, "the Church affirms that for believers the sacraments of the New Covenant are necessary for salvation" [CCC 1129]. We should make every effort, therefore, to frequent the sacraments frequently and worthily for the salvation of our souls and for the true worship of our Father in heaven. Moreover, this knowledge should impel us to share our faith with others so that they too may come to know and love our Lord Jesus Christ.
These final two sacraments "are directed towards the salvation of others; if they contribute as well to personal salvation, it is through service to others that they do so. They confer a particular mission in the Church and serve to build up the People of God" [CCC 1534].