Eschatology is words about the end of the world – the end of History. Christians have already but not quite yet entered eternal life ………
(……..T)he end of all history, is Christ on the cross, the murdered Son of God. That is the last desperate assault on the gate of paradise. And under the whirling sword, under the cross, the human race dies. But Christ lives. The trunk of the cross becomes the wood of life, and now in the midst of the world, on the accursed ground itself, life is raised up anew. In the center of the world, from the wood of the cross, the fountain of life springs up. All who thirst for life are called to drink from this water, and whoever has eaten from the wood of this life shall never again hunger and thirst. What a strange paradise is this hill of Golgotha, this cross, this blood, this broken body. What a strange tree of life, this trunk on which the very God had to suffer and die. Yet it is the very kingdom of life and of the resurrection, which by grace God grants us again. It is the gate of imperishable hope now opened, the gate of waiting and of patience. The tree of life, the cross of Christ, the center of God’s world that is fallen but upheld and preserved—that is what the end of the story about paradise is for us.
Once more God opens the gate to fair Paradise today;
no angel now bars the way.
Glory to God, who is great, and praise and honor, we say.
Dietrich Bonhoeffer – “Creation and Fall” – A Theological Exposition of Genesis 1-3″