Reflection on the Annunciation
The Church has a standardized prayer book (the Liturgy of the Hours) that all priests and vowed religious pray daily.
It includes many reflections from the Church Fathers and great saints.
As we wrap up the Advent season, and contemplate the role of Mary the Mother of God in our salvation, the reading for December 20th is a powerful reflection on the Annunciation (excerpted below) by the great 12th century monk St. Bernard of Clairvaux.
Also recommended is the reading for December 21st by St. Ambrose, also on the Annunciation.
Worth taking a few minutes out in prayer for this.