Sunday, the day of joy, commemorates the cause of our joy and looks forward to its consummation in eternity. There can be no Christian life without Sunday, no Sunday without the Mass. Here is the setting of the redemptive work of our Lord Jesus Christ, and its acceptance is the condition of any Christian recovery. Too often Sunday is confused with its secondary aspects: obligations, abstention from servile work, the merely natural rest in the cycle of time demanded by man's nature. But the first day of the week is the day of resurrection, far older as a feast than Easter. Its holiness enshrines the central mystery of Faith, and the Sabbath that marks the creative rest of God is transfigured now into the day of the new creation of grace.