The Eucharist, also known as Communion or the Mass, is considered the most important sacrament in the Catholic Church as through it Catholics believe that the bread and wine truly become the body and blood of Christ; the Eucharist unites Catholics as members of the Church and nourishes them spiritually. The Mass follows a specific structure including the Liturgy of the Word, presentation of gifts, Eucharistic prayer, and sending forth to live out Catholic beliefs in daily life.