Lamb of God modern Roman Catholic Christology, Karl Rahner has continued to elaborate on the analogy that the blood of the Lamb of God, and the water flowing from the side of Christ on Calvary, had a cleansing nature, similar to baptismal water. In this analogy, the blood of the Lamb washed away the sins of humanity in a new baptism, redeeming it from the fall of Adam. In the Mass of the Roman Rite and also in the Eucharist of the Anglican Communion, the Lutheran Church, and the Western Rite of the Orthodox Church the "Agnus Dei" is the invocation to the
Teachings of Opus Dei of terrestrial realities. In his opening message for the theological symposium "Holiness and the World", Cardinal Joseph Ratzinger stressed that the teachings on sanctity of the founder of Opus Dei are "Christ-centred". The message Opus Dei is called to proclaim, that all Christians can and should become a saint, is grounded in the following premises: Christians believe that (1) they are "poor creatures" made of nothing "whose pride leads (them) to rise up against God;" (2) Christ is the almighty God, who "has created us and maintains us in existence," and is the "only one who can satisfy the longings