On 9 November 1921, Pope Benedict XV instituted the feast of the Eucharistic Heart of Jesus to be celebrated on the Thursday within the Octave of the Sacred Heart with a Proper Mass and Office. The feast continues to be celebrated in some places and by some communities, notably by the Redemptorists who maintain it in their Proper Calendar. In instituting the feast, Pope Benedict XV wrote:
The chief reason of this feast is to commemorate the love of Our Lord Jesus Christ in the mystery of the Eucharist. By this means the Church wishes more and more to excite the faithful to approach this sacred mystery with confidence, and to inflame their hearts with that divine charity which consumed the Sacred Heart of Jesus when in His infinite love He instituted the Most Holy Eucharist, wherein the Divine Heart guards and loves them by living with them, as they live and abide in Him. For in the sacrament of the Holy Eucharist He offers and gives Himself to us as victim, companion, nourishment, viaticum, and pledge of our future glory.
Even to the Consummation of the World
The adorable mystery of the Eucharist sums up, contains, and communicates to us the entire mystery of Christ: His incarnation, life, passion, death, resurrection, and ascension, and outpouring of the Holy Spirit. If you seek the open Side of the glorious ascended Christ, you will find it in the Eucharist. If you seek the pierced Heart of Christ, beating with love for the Father and with mercy for sinners, you will find it in the Eucharist. The Communion Antiphon of the Mass of the feast is meant to be repeated and treasured. It is, at once, a promise and an invitation: “Behold I am with you all days, even to the consummation of the world” (Mt 28:20).
May the Heart of Jesus in the Most Blessed Sacrament be praised, adored and loved with grateful affection, at every moment, in all the tabernacles of the world, even to the end of time. Amen.