...Although this feast was introduced only in recent times, Mary is depicted in Christian art as a queen already in the sixth century. In two well-known twelfth-century hymns, Mary is saluted: “Hail, O Queen, mother of mercy” and “Hail, Queen of the heavens.” The Christian imagination sees Mary assumed into the royal court of heaven. Her Son joyously greets her. She is welcomed by choirs of angels and a crowd of saints. In filial love Christ crowns Our Lady as Queen of Heaven and Earth. Through her faith and charity she became the Mother of the Savior (Luke 2). She, the New Eve, crushes the head of the serpent (Gen 3:15). On her head is a crown of twelve stars (Rev. 12:1), and from this exalted position, Our Heavenly Mother aids the Church by her prayers of love and mercy.
...O God, who made the Mother of your Son
to be our Mother and our Queen,
graciously grant that, sustained by her intercession,
we may attain in the heavenly Kingdom
the glory promised to your children.
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Catholic saints are holy people and human people who lived extraordinary lives. Each saint the Church honors responded to God's invitation to use his or her unique gifts. God calls each one of us to be a saint :)