In the Eucharist we offer bread and wine to God and it becomes, through the power of the Holy Spirit, the body and blood of Our Lord, Jesus Christ, which we then receive in Holy Communion.
This sacrament unites us with Jesus and with one another. The Eucharist is the high point of our Christian worship together. βIt is the source and summit of all Christian life.β (Catechism of the Catholic Church 1324)