51 At the end of the daily Liturgy of the Hours, among the invocations addressed to Mary by the Church is the following: "Loving Mother of the Redeemer, gate of heaven, star of the sea, assist your people who have fallen yet strive to rise again. To the wonderment of nature you bore your Creator!" "To the wonderment of nature"! These words of the antiphon express that wonderment of faith which accompanies the mystery of Mary's divine motherhood. In a sense, it does so in the heart of the whole of creation, and, directly, in the heart of the whole People of God, in the heart of the Church. How wonderfully far God has gone, the Creator and Lord of all things, in the "revelation of himself" to man! How clearly he has bridged all the spaces of that infinite "distance" which separates the Creator from the creature! If in himself he remains ineffable and unsearchable, still more ineffable and unsearchable is he in the reality of the Incarnation of the Word, who became man through the Virgin of Nazareth. If he has eternally willed to call man to share in the divine nature (cf. 2 Pt. 1:4), it can be said that he has matched the "divinization" of man to humanity's historical conditions, so that even after sin he is ready to restore at a great price the eternal plan of his love through the "humanization" of his Son, who is of the same being as himself. The whole of creation, and more directly man himself, cannot fail to be amazed at this gift in which he has become a sharer, in the Holy Spirit: "God so loved the world that he gave his only Son" (Jn. 3:16). At the center of this mystery, in the midst of this wonderment of faith, stands Mary. As the loving Mother of the Redeemer, she was the first to experience it: "To the wonderment of nature you bore your Creator"!
Source: Redemptoris Mater (Vatican.va)