Mariology of the saints Marian veneration is the best. Canisius tried to show a practical rationale for Marian devotion and defended it against opposing Protestant arguments. His lasting contribution to this "applied mariology" are his three catechisms, which he published in Latin and German, and which became widespread and popular in Catholic regions. Under the heading "prayer" he explains the Ave Maria, (Hail Mary), as the basis for Catholic Marian piety. Less known are his Marian books, in which he published prayers and contemplative texts. He is credited with adding to the Hail Mary the sentence "Holy Mary, Mother of God, pray for us
Prayer beads were presumably used to count repetitions of the Lord's Prayer. Later, Roman Catholics and eventually Anglicans prayed the rosary with strings of 59 beads. The term "rosary" comes from the Latin "rosarium" "rose garden" and is an important and traditional devotion of the Catholic Church, combining prayer and meditation in sequences (called "decades") of the Lord's Prayer, 10 Hail Marys, and a Gloria Patri as well as a number of other prayers (such as the Apostles' Creed and the Salve Regina) at the beginning and end. The prayers are accompanied by meditation on the Mysteries, events in the life and