We empathize with others because we smell the whiff of death in their vulnerabilities and so we celebrate their life. There's no such thing as empathy in heaven because there's no mortality, no suffering. Empathy is about encouraging another person's struggle to be. It's a tough feeling to have. In utopia there's no struggle, there's nothing to empathize with. Empathy is more than just, "I feel your pain". We root for each other's struggle to live out this mystery of life.
via newscientist.com