The document discusses the Catholic sacrament of Eucharist, also known as Communion or Mass. It explains that Eucharist commemorates Jesus' last supper, where he transformed bread and wine into his body and blood. During Mass, the priest repeats Jesus' words to consecrate the bread and wine. The document emphasizes that Eucharist strengthens our relationship with Christ and unity with the Church. It also stresses that people with intellectual/developmental disabilities should be fully included in the Mass celebration.