The document discusses the Paschal Mystery, which refers to Jesus Christ's suffering, death, resurrection, and glorification. It explains that Jesus is called "The Lamb of God" because he was sacrificed like the Passover lambs to save humanity from our sins. Jesus had to suffer and die to pay the penalty for our sins and redeem mankind. For Christians, the resurrection demonstrates God's power and proves that Jesus is God, and that our salvation and faith depends on believing in Jesus's resurrection. The events of Holy Week, from Holy Thursday to Easter Sunday, are linked to the Jewish Passover through their symbolism and calendar positioning, and the ritual washing of Maundy Thursday relates to the Jewish custom of cleaning