CC BY-NC-ND by Lawrence OPThe Eucharist is a very important Sacrament for Catholics.
The Eucharist is celebrated at every Mass and can be received once a Catholic has taken their First Holy Communion, when they will receive the Eucharist for the first time. Whilst every Mass reminds Catholics of the Last Supper Jesus shared with His disciples, the Eucharist itself is a symbol of the sacrifice that Jesus made through dying on the Cross and rising again.
Taken from The Faith Of The Catholic Church a CTS Publication
163. What is the Eucharist?
The Eucharist is the Sacrament of Christ’s Body and Blood instituted at the Last Supper. It perpetuates the sacrifice of the cross for all time. It completes the process of Christian initiation begun by Baptism and developed by Confirmation by enabling the Christian to share in Christ’s own sacrifice and life. It is the life giving food for the Christian’s journey.
164. Is the Eucharist called by any other names?
The unfathomable richness of this Sacrament is indicated by the variety of names given to it, among which are: The Eucharist, the Lord’s Supper, the Breaking of Bread, the Eucharistic Assembly, the Holy Sacrifice, the Holy and Divine Liturgy, Holy Communion, Holy Mass.