The ultimate joy of the universe is the final resolution of conflict, sorrow, sin, and death as seen by Saint John for the end of times:
515. God’s project is “the Holy City, the new Jerusalem” coming down from heaven, with God, “prepared as a bride adorned for her husband,” for “God’s dwelling is with the human race. He will dwell with them and they will be his people and God himself will always be with them. He will wipe every tear from their eyes, and there shall be no more death or mourning, wailing or pain, for the old order has passed away” (Revelation 21:2-4). In its fullness this project is yet to come, but it is being fulfilled in Jesus Christ, “the Alpha and the Omega, the Beginning and the End,” (21:6), who tells us “Behold, I make all things new.” (21:5).
If this is indeed God’s “project,” then this has already been initiated in Christ’s incarnation, Passion, and Resurrection. We live in between, as it were. And the task of evangelization is one of today, here-and-now, and involves all of the Church’s activity in the mortal realm:
516. The Church is at the service of bringing about this Holy City, through the proclamation and living of the Word, the celebration of the liturgy, fellowship, and service, especially to the poorest and those who most suffer, and thus as leaven of the Kingdom it continues to transform the contemporary city in Christ.
We have our sights set on the heavenly ideal as we labor to form and reform our cities on Earth today. For deeper examination, an English translation of the 2007 document from the Aparecida Conference.