The Last Sunday of the Church’s Year corresponds to the End of Time. In the Creed we proclaim that "He (Christ) will come again in glory to judge the living and the dead, and His kingdom will have no end." Thus, we remind ourselves that, one day, the world as we know it will end, and all human history will be brought to its climax and goal for which it was created, the unveiling of the glory of Him who is God's Son and Mary's, "True God and True Man." Then Christ will be "all in all" and all creation will serve Him in the light of unending glory.
The origin of this feast, established by Pius XI in 1925, was to counteract, first, the growth of totalitarianism, whether fascist or communist, which proclaimed the priority of the state over the person, disavowing the rights of the individual; and secondly, to teach the truth in the face of the growth of democracy, that authority comes not from the People, but from Christ, and must therefore accord, not with the will of the majority, but with God’s law.
~ FR. PAUL DOBSON