On the day following Pentecost Sunday, strengthened by the presence of the Holy Spirit, we have a fitting opportunity to delve into a tremendously important dimension of our faith: the Church that Christ founded is intimately linked to His Mother and the role she plays within God's salvific plan.
The Blessed Virgin Mary watches over each of her children with maternal love, protecting them from the snares of the Evil One and accompanying them on their journey through this earth.
“This celebration will help us to remember that growth in the Christian life must be anchored to the Mystery of the Cross, to the oblation of Christ in the Eucharistic Banquet and to the Mother of the Redeemer and Mother of the Redeemed, the Virgin who makes her offering to God,” the Decree reads in part.
Here is the full text of the Decree establishing the Memorial of Mary, Mother of the Church
CONGREGATION FOR DIVINE WORSHIP AND THE DISCIPLINE OF THE SACRAMENTS
DECREE ON THE CELEBRATION OF THE BLESSED VIRGIN MARY MOTHER OF THE CHURCH IN THE GENERAL ROMAN CALENDAR
The joyous veneration given to the Mother of God by the contemporary Church, in light of reflection on the mystery of Christ and on his nature, cannot ignore the figure of a woman (cf. Gal 4:4), the Virgin Mary, who is both the Mother of Christ and Mother of the Church.
In some ways this was already present in the mind of the Church from the premonitory words of Saint Augustine and Saint Leo the Great. In fact the former says that Mary is the mother of the members of Christ, because with charity she cooperated in the rebirth of the faithful into the Church, while the latter says that the birth of the Head is also the birth of the body, thus indicating that Mary is at once Mother of Christ, the Son of God, and mother of the members of his Mystical Body, which is the Church. These considerations derive from the divine motherhood of Mary and from her intimate union in the work of the Redeemer, which culminated at the hour of the cross.
Indeed, the Mother standing beneath the cross (cf. Jn 19:25), accepted her Son’s testament of love and welcomed all people in the person of the beloved disciple as sons and daughters to be reborn unto life eternal. She thus became the tender Mother of the Church which Christ begot on the cross handing on the Spirit. Christ, in turn, in the beloved disciple, chose all disciples as ministers of his love towards his Mother, entrusting her to them so that they might welcome her with filial affection.
As a caring guide to the emerging Church Mary had already begun her mission in the Upper Room, praying with the Apostles while awaiting the coming of the Holy Spirit (cf. Acts 1:14). In this sense, in the course of the centuries, Christian piety has honoured Mary with various titles, in many ways equivalent, such as Mother of Disciples, of the Faithful, of Believers, of all those who are reborn in Christ; and also as “Mother of the Church” as is used in the texts of spiritual authors as well as in the Magisterium of Popes Benedict xiv and Leo xiii.