Dies Domini

Dies Domini is an apostolic letter promulgated by Pope John Paul II on July 30, 1998. In this doctrine, Pope John Paul encourages the Catholic population to 'rediscover the meaning' behind keeping the Lord's Day holy.

Pope John Paul II explains the meaning of the Sunday in the light of Christian tradition. To celebrate Sunday is to make present the graces of the Paschal mystery, which is the climax of the salvation history:

The Paschal Mystery of Christ is the full revelation of the mystery of the world's origin, the climax of the history of salvation and the anticipation of the eschatological fulfilment of the world. What God accomplished in Creation and wrought for his People in the Exodus has found its fullest expression in Christ's Death and Resurrection, though its definitive fulfilment will not come until the Parousia, when Christ returns in glory. In him, the "spiritual" meaning of the Sabbath is fully realized, as Saint Gregory the Great declares: "For us, the true Sabbath is the person of our Redeemer, our Lord Jesus Christ."

It is the day which recalls in grateful adoration the world’s first day and looks forward in active hope to the ‘last day,’ when Christ will come in glory and all things will be made new.” Sunday recalls the day of Christ's Resurrection. This is a tradition going back to the Apostles, taking its origin from the actual day of Christ’s Resurrection—a day thus appropriately designated “ the Lord’s Day.”