One of the better quotes I came across in MySpace said "the trick is not to live forever, but to be able live with yourself forever." I'm paraphrasing.
I always like to use the analogy of the mirror. When you die, you are handed a mirror. You're fate then is to look into that mirror for all eternity. If you were mean, ugly, hateful, angry, dark and loathsome, well that is what you get to watch forever. If on the other hand you were beautiful, loving, happy, light and lovable, well that then is what you get for all eternity.
I think in a nutshell that is what Jesus was trying to teach us, as well as other great masters.