The Rosary is a prayer practice with over 7 centuries of use in the Church that involves meditating on the mysteries of Christ's life, death, and resurrection through specific prayers. As Catholics reflect on the meaning of events like the Annunciation and Crucifixion while praying, they can gain deeper understanding of Christian truths. The Rosary was promoted by St. Dominic in the 13th century in response to the Albigensian heresy in southern France where he was a missionary.