Total rip-off Tuesday

Wherein I totally rip-off another writer.  Today's choice is Blessed John Paul the Great, and his apostolic letter, "Salvific Suffering":

In the Paschal Mystery Christ began the union with man in the community of the Church. The mystery of the Church is expressed in this: that already in the act of Baptism, which brings about a configuration with Christ, and then through his Sacrifice—sacramentally through the Eucharist—the Church is continually being built up spiritually as the Body of Christ. In this Body, Christ wishes to be united with every individual, and in a special way he is united with those who suffer. The words quoted above from the Letter to the Colossians bear witness to the exceptional nature of this union. For, whoever suffers in union with Christ— just as the Apostle Paul bears his "tribulations" in union with Christ— not only receives from Christ that strength already referred to but also "completes" by his suffering "what is lacking in Christ's afflictions". This evangelical outlook especially highlights the truth concerning the creative character of suffering. The sufferings of Christ created the good of the world's redemption. This good in itself is inexhaustible and infinite. No man can add anything to it. But at the same time, in the mystery of the Church as his Body, Christ has in a sense opened his own redemptive suffering to all human suffering. In so far as man becomes a sharer in Christ's sufferings—in any part of the world and at any time in history—to that extent he in his own way completes the suffering through which Christ accomplished the Redemption of the world.
Does this mean that the Redemption achieved by Christ is not complete? No. It only means that the Redemption, accomplished through satisfactory love, remains always open to all love expressed in human suffering. In this dimension—the dimension of love—the Redemption which has already been completely accomplished is, in a certain sense, constantly being accomplished. Christ achieved the Redemption completely and to the very limits but at the same time he did not bring it to a close. In this redemptive suffering, through which the Redemption of the world was accomplished, Christ opened himself from the beginning to every human suffering and constantly does so. Yes, it seems to be part of the very essence of Christ's redemptive suffering that this suffering requires to be unceasingly completed.