After confessing "the holy catholic Church," the Apostles' Creed adds "the communion of saints." In a certain sense this article is a further explanation of the preceding: "What is the Church if not the assembly of all the saints?" The communion of saints is the Church.

Since all the faithful form one body, the good of each is communicated to the others. We must therefore believe that there exists a communion of goods in the Church. But the most important member is Christ, since he is the head. Therefore, the riches of Christ are communicated to all the members, through the sacraments. As this Church is governed by one and the same Spirit, all the goods she has received necessarily become a common fund. The term "communion of saints" therefore has two closely linked meanings: communion in holy things (sancta) and "among holy persons (sancti).

"God's holy gifts for God's holy people (Sancta sancti's)" is proclaimed by the celebrant in most Eastern liturgies during the elevation of the holy Gifts before the distribution of communion. The faithful (sancta) are fed by Christ's holy body and blood (sancta) to grow in the communion of the Holy Spirit (koinonia) and to communicate it to the world. (Catechism, 946-948).

"All generations will call me blessed." The Church's devotion to the Blessed Virgin is intrinsic to Christian worship. The Church rightly honors the Blessed Virgin with special devotion. From the most ancient times the Blessed Virgin has been honored with the title of 'Mother of God,' to whose protection the faithful fly in all their dangers and needs. This very special devotion differs essentially from the adoration which is given to the incarnate Word and equally to the Father and the Holy Spirit, and greatly fosters this adoration.  The liturgical feasts dedicated to the Mother of God and Marian prayer, such as the rosary, express this devotion to the Virgin Mary (Catechism, 971).