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
Veneration of Mary in the Catholic Church and other reasons. In Roman Catholic teachings, the veneration of Mary is a natural consequence of Christology: Jesus and Mary are son and mother, redeemer and redeemed. This sentiment was expressed by Pope John Paul II in his encyclical "Redemptoris mater": "At the centre of this mystery, in the midst of this wonderment of faith, stands Mary. As the loving Mother of the Redeemer, she was the first to experience it: 'To the wonderment of nature you bore your Creator'!" In the Roman Catholic tradition Mariology is seen as Christology developed to its full potential. Mary is seen as contributing