By Peter Kreeft:
Quo vadis? Where are you going? That's the most important question for a traveler. And we the living are all travelers. Death calls us all and moves us on. Stability is illusion. So those who cannot abide illusion must raise the question: Quo vadis?
If heaven is not the answer to the question, our whole faith is false, and Jesus was a fool. If it is, then there's nothing that is more important in the whole world. Indeed, the whole world is only heaven's womb.