Eucharist in the Catholic Church Eucharist in the Catholic Church The Eucharist in the Catholic Church is celebrated as "the source and summit" of the Christian life. The Eucharist is consecrated daily (except on Good Friday, when consecration takes place on Maundy Thursday, but is distributed during the Mass of the Presanctified) during the celebration of Mass, the eucharistic liturgy. The term "Eucharist" is also used for the bread and wine when transubstantiated (their substance having been changed), according to Catholic teaching, into the body and blood of Jesus Christ. "At the Last Supper, on the night he was betrayed, our Saviour instituted the Eucharistic
Origin of the Eucharist and beliefs regarding the Eucharist took definitive shape as central to Christian worship. At first, they spread through word of mouth, but within a generation Christians had begun writing about Jesus and about Christian practice, the Eucharist included. The theology of the Eucharist and its role as a sacrament developed during this period. Basing himself on the "First Apology" and the "Dialogue with Trypho" of Justin Martyr writing around 150 AD, K.W. Noakes deduces the following liturgical structure was in use at that time: This corresponds in general outline to the structure of the rite as used today and is