The Eucharist completes Christian initiation. Through this sacrament of
initiation we participate with the whole community of believers in the Lord’s
The Eucharist (from the Greek word eucharistia 'thanksgiving') is the sacrament
of the body and blood of Christ in which he is present under the forms of bread
and wine offering himself in the sacrifice of the Mass and giving himself as
spiritual food to the faithful.
At the Last Supper, the Lord instituted the eucharistic sacrifice of his body
and blood. He did this in order to perpetuate the sacrifice of the cross
throughout the ages until he should come again, and so to entrust to the church
a memorial of his death and resurrection.
The Eucharist is the source and summit of the Christian life.