Ecumenism is, in the words of Benedict XVI, a plea made with one spirit and one heart responding to the same desire of the Redeemer who, at the last supper, went to the father with the words: "pray not only by them but also by those who, through his word, believe in me, so that all may be one. «As you, father, in me and I in you, that they may also be one in us, so that the world may believe that you have sent me "(John 17: 20-21).