The beautiful sections of Pope Paul VI’s encylical Mysterium Fidei (1965), are the ones dealing with the manner in which Our Lord is present in the Church today. Christmastide is nothing if not about the Presence of Someone who makes a difference in our lives, who redeems us from sin, who gives Himself completely, par excellence, to us in the Eucharist. The Presence is not about the doing of nice things, but offering us concretely eternal life. As Saint Ignatius of Antioch famously said of the Eucharist, the Presence of the Lord in the Eucharist is given to us as the “medicine of immortality.”
Glory of the New Born Christ Child in presence of God Father and the Holy Spirit (Annakirche, Vienna) Adam and Eve are represented bellow Jesus Christ Ceiling painted by Daniel Gran (1694-1757).
35. All of us realize that there is more than one way
in which Christ is present in His Church. We want to go into this very joyful
subject, which the Constitution on the Sacred Liturgy presented briefly, at
somewhat greater length. Christ is present in His Church when she prays, since
He is the one who “prays for us and prays in us and to whom we pray: He
prays for us as our priest, He prays in us as our head, He is prayed to by us
as our God”; and He is the one who has promised, “Where two or three
are gathered together in my name, I am there in the midst of them.” He is
present in the Church as she performs her works of mercy, not just because
whatever good we do to one of His least brethren we do to Christ Himself, but
also because Christ is the one who performs these works through the Church and
who continually helps men with His divine love. He is present in the Church as
she moves along on her pilgrimage with a longing to reach the portals of
eternal life, for He is the one who dwells in our hearts through faith, and who
instills charity in them through the Holy Spirit whom He gives to us.
