62 Let us take our place, dear brothers and sisters, at the school of the saints , who are the great interpreters of true Eucharistic piety. In them the theology of the Eucharist takes on all the splendour of a lived reality; it becomes “contagious” and, in a manner of speaking, it “warms our hearts”. Above all, let us listen to Mary Most Holy , in whom the mystery of the Eucharist appears, more than in anyone else, as a mystery of light . Gazing upon Mary, we come to know the transforming power present in the Eucharist . In her we see the world renewed in love. Contemplating her, assumed body and soul into heaven, we see opening up before us those “new heavens” and that “new earth” which will appear at the second coming of Christ. Here below, the Eucharist represents their pledge, and in a certain way, their anticipation: “Veni, Domine Iesu!” ( Rev 22:20). In the humble signs of bread and wine, changed into his body and blood, Christ walks beside us as our strength and our food for the journey, and he enables us to become, for everyone, witnesses of hope. If, in the presence of this mystery, reason experiences its limits, the heart, enlightened by the grace of the Holy Spirit, clearly sees the response that is demanded, and bows low in adoration and unbounded love. Let us make our own the words of Saint Thomas Aquinas, an eminent theologian and an impassioned poet of Christ in the Eucharist, and turn in hope to the contemplation of that goal to which our hearts aspire in their thirst for joy and peace: Bone pastor, panis vere, Iesu, nostri miserere... Come then, good Shepherd, bread divine, Still show to us thy mercy sign; Oh, feed us, still keep us thine; So we may see thy glories shine in fields of immortality. O thou, the wisest, mightiest, best, Our present food, our future rest, Come, make us each thy chosen guest, Co-heirs of thine, and comrades blest With saints whose dwelling is with thee. Given in Rome, at Saint Peter's, on 17 April, Holy Thursday, in the year 2003, the Twenty- fifth of my Pontificate, the Year of the Rosary.
Source: Ecclesia de Eucharistia (Vatican.va)