Catholic theology
Catholic belief holds that the church exists both on earth and in heaven simultaneously, and thus the Virgin Mary and the saints are alive and part of the living church. Prayers and devotions to Mary and the saints are common practices in Catholic life. These devotions are not worship, since only God is worshiped. The church teaches that the saints "do not cease to intercede with the Father for us. ... So by their fraternal concern is our weakness greatly helped."
Catholic particular churches and liturgical rites
The Holy See, the Diocese of Rome, is seen as the central local church. The bishop, the Pope, is considered to be, in a unique sense, the successor of Saint Peter, the chief (or "prince") of the apostles. Quoting the Second Vatican Council's document "Lumen gentium", the "Catechism of the Catholic Church" states: "The Pope, Bishop of Rome and Peter's successor, 'is the perpetual and visible source and foundation of the unity both of the bishops and of the whole company of the faithful.