Jesus promised believers that they would experience a fountain of Living Water welling up in them, giving eternal life, and the Holy Spirit has ever since being filling the Catholic Church with a wide variety of reservoirs to hold that Living Water in different configurations of spirituality.

As Pope Benedict XVI, the former Cardinal Ratzinger brought his Benedictine roots to the papacy. As a Jesuit himself, Pope Francis brought the charisms of the Society of Jesus, while Pope Leo XIV has brought the priorities of the Augustinians.