The sacrament of the Eucharist is when Christians remember the Last Supper. The Eucharist is referred to by Catholics as Mass and it involves spiritually feeding participants with the body and blood of Christ.
The Eucharist is also known as Communion, Holy Communion or The Blessed Sacrament.
According to the Catholic Church, the Eucharist is
the source and summit of the Christian life(Catechism of the Catholic Church 1324). This means that Christian spirituality flows from the Eucharist (the source) and so Christian actions should be directed towards it (the summit). Every other sacrament is linked to the Eucharist.
For many non-Catholics this sacrament is very controversial. However, for Catholics it is considered to be of central importance.