With the resurrection of the Christ the mystery of life after death became a lot less mysterious. It moved from the realm of conjecture and fantasy to a reality grounded in (of all things!) our human bodies
There is a better way to preach the End Times that has nothing to do with Left Behind series scenarios. The key is no secret at all. Follow where Christology leads.
The resurrection of Jesus was the moment when the one true God appointed the Man through whom the whole cosmos would be brought back into its proper order. A man got us into this mess; the Man would get it out again.
Preaching the end times purposes to solicit and strengthen faith in the Savior of the world who is at the same time the Creator and Re-creator of the world.