The Eucharist is a mystery, one of the aspects of the salvation of humankind; it is through this God revealed himself to all humanity.1 From the origins of the Church until present time, the manner of the celebration of the Eucharist has varied, but it has always had the same essence: to celebrate the memorial of the sacrifice of Jesus Christ for the salvation of all people, but with a variety of traditions which continue to live in the Church now.2 Before the sixteenth century Reformation of the Catholic Church, the theology of the Eucharist was based on two elements: transubstantiation and the scripture of Christ. The devotional and liturgical lives of the people were a response to this interpretation of the Eucharist.
In the early medieval Eucharist, two points in particular arose the leadership of Pope Hadrian I, when he acceded to the request of Charlemagne. To use a copy of the Roman Sacramentary in Gaul.3 This was a very important event or symbol in medieval Europe.Firstly, "the Eucharist was destined to become a focal point for faith and piety in a new way"4 The writers of the Patristic Era thought that it was a good point to focus on redemption, but also to bring to their homes this knowledge of salvation. Secondly, the progression from the classical to the medieval world meant that the mentality of the classical age passed. People of the new age" lost the sacramental synthesis of the early Church, and for them the Eucharist became a matter of significant controversy for the first time."5.
The Western liturgy has preserved the "open" character of the Eucharist as a celebration in which the whole the community is able to participate.6 They take part in the story of the Eucharist, the importance of which Ignatius of Antioch makes clear when he says that "The Eucharist is the flesh of our Saviour, Jesus Christ, who suffered for our sins, which the Father raised up in his goodness"7 In this sense, the celebration of the Holy Eucharist is a memorial of Christ, who suffered and interceded for as to the Father so that the sin of all humankind could be forgiven.