Every time the Mass is celebrated something astonishing occurs: the Sacrifice of Jesus Christ on the Cross is made truly present. The Mass is the sacrifice of Christ. In this way, it offers all Catholics a powerful and personal encounter with the loving Saviour, Jesus Christ, who gave his life for the salvation of sinners. Drawing on the sacred Scripture, the Catechism of the Catholic Church, and the wise words of saints and popes, this book explains how the Sacrifice of the Holy Mass unites the faithful with God.