Dear brothers and sisters! It is with great joy that I extend my warm greetings to all of you who have gathered in this basilica for the liturgical Feast of the Conversion of St. Paul, concluding the Week of Prayer for Christian Unity, in this year when we are celebrating the fiftieth anniversary of the Second Vatican Council, that the Blessed John XXIII announced in this very basilica on January 25, 1959. The theme offered for our meditation in the Week of prayer which we conclude today, is: "All shall be changed by the victory of Jesus Christ our Lord" (cf. 1 Cor 15.51-58).