The chief prayer to the Blessed Virgin which the church uses is the Hail Mary.

Hail Mary, full of grace; the Lord is with thee;
blessed art thou among women,
and blessed is the fruit of thy womb, Jesus.
Holy Mary, Mother of God,
pray for us sinners, now, and at the hour of our death. Amen.

The Angel Gabriel and St. Elizabeth, inspired by the Holy Spirit, made the first part of the Hail Mary.

'The Church of God, guided by the Holy Spirit, made the second part of the Hail Mary.

We should frequently say the Hail Mary to put us in mind of the Incarnation of the Son of God; and to honor our Blessed Lady, the Mother of God.

We have another reason for often saying the Hail Mary - to ask our Blessed Lady to pray for us sinners at all times, but especially at the hour of our death.

The Catholic Church shows great devotion to the Blessed Virgin because she is the Immaculate Mother of God.

The Blessed Virgin is Mother of God because Jesus Christ, her son, who was born of her as man, is not only man, but is also truly God.

The Blessed Virgin is our Mother also because, being the brethren of Jesus, we are the children of Mary.

By the Assumption of the Blessed Virgin we mean that by the power of God, Mary, at the completion of her life, was taken body and soul into everlasting glory to reign as Queen of heaven and earth.

The Assumption of the Blessed Virgin is an article of Faith because it has been solemnly defined by the infallible authority of the Church.