Youcat commented through CCC – Question n. 208.

YOUCAT Question n. 208 - What is Holy Eucharist?

(Youcat answer) Holy Eucharist is the sacrament in which Jesus Christ gives his Body and Blood—himself— for us, so that we too might give ourselves to him in love and be united with him in Holy Communion. In this way we are joined with the one Body of Christ, the Church.

A deepening through CCC

(CCC 1322) The holy Eucharist completes Christian initiation. Those who have been raised to the dignity of the royal priesthood by Baptism and configured more deeply to Christ by Confirmation participate with the whole community in the Lord's own sacrifice by means of the Eucharist. (CCC 1323) "At the Last Supper, on the night he was betrayed, our Savior instituted the Eucharistic sacrifice of his Body and Blood. This he did in order to perpetuate the sacrifice of the cross throughout the ages until he should come again, and so to entrust to his beloved Spouse, the Church, a memorial of his death and resurrection: a sacrament of love, a sign of unity, a bond of charity, a Paschal banquet 'in which Christ is consumed, the mind is filled with grace, and a pledge of future glory is given to us’" (SC 47).   

Reflecting and meditating 

(Youcat comment) After Baptism and Confirmation, the Eucharist is the third sacrament of initiation of the Catholic Church. The Eucharist is the mysterious center of all these sacraments, because the historic sacrifice of Jesus on the Cross is made present during the words of consecration in a hidden, unbloody manner. Thus the celebration of the Eucharist is “the source and summit of the Christian life” (Second Vatican Council, Lumen gentium [LG], 11). Everything aims at this; besides this there is nothing greater that one could attain. When we eat the broken Bread, we unite ourselves with the love of Jesus, who gave his body for us on the wood of the Cross; when we drink from the chalice, we unite ourselves with him who even poured out his blood out of love for us. We did not invent this ritual. Jesus himself celebrated the Last Supper with his disciples and therein anticipated his death; he gave himself to his disciples under the signs of bread and wine and commanded them from then on, even after his death, to celebrate the Eucharist. “Do this in remembrance of me” (1 Cor 11:24).

 (CCC Comment)

(CCC 1324) The Eucharist is "the source and summit of the Christian life" (LG 11). "The other sacraments, and indeed all ecclesiastical ministries and works of the apostolate, are bound up with the Eucharist and are oriented toward it. For in the blessed Eucharist is contained the whole spiritual good of the Church, namely Christ himself, our Pasch" (PO 5). (CCC 1409) The Eucharist is the memorial of Christ's Passover, that is, of the work of salvation accomplished by the life, death, and resurrection of Christ, a work made present by the liturgical action.

(The next question is: When did Christ institute the Eucharist?)