Catholic theology of holiness. Prayers and devotions asking for her intercession, such as the rosary, the Hail Mary, and the Memorare are common Catholic practice. The Church devotes several liturgical feasts to Mary, mainly the Immaculate Conception, Mary, Mother of God, the Visitation, the Assumption, the Nativity of the Blessed Virgin Mary; and in the Americas the Feast of Our Lady of Guadalupe. Pilgrimages to Marian shrines like Lourdes, France, and Fátima, Portugal, are also a common form of devotion and prayer. Men become bishops, priests or deacons through the sacrament of Holy Orders. Candidates to the priesthood must have a college
Veneration of Mary in the Catholic Church and memorials in the General Roman Calendar of the Catholic Church are: A large number of titles to honor Mary or ask for her intercession are used by Roman Catholics. While "Mater Dei" (i.e. "Mother of God" as confirmed by the First Council of Ephesus, 431) is common in Latin, a large number of other titles have been used by Roman Catholics – far more than any other Christians. Titles used to refer to the Virgin Mary throughout history, at times reflect the changing attitudes towards her. "Domina" (lady), "Regina" (queen) and "Stella Maris" (star of the sea) are some