The Solemnity of Mary Mother of God commemorates the divine motherhood of the Blessed Virgin Mary, Mother of our Lord and God Jesus Christ.
On this day, we are reminded of the role that the Blessed Virgin played in the plan of our salvation. Christ's Birth was made possible by Mary's fiat: "Be it done unto me according to Thy word."
The Solemnity of Mary on January 1, is a holy day of obligation.