There is nothing I could think of that could make eternity sound even remotely tempting. While still religious, the idea of living forever and ever, with no end, EVER, was the scariest thing I could think of (even if, technically, I couldn't even perceive it). People are finite, they are not meant for infinity (well, they're not "meant" for anything, but...).
But the eternal dilemma - how can we be happy amid the unhappiness of others?