Here there is no hope, and consequently no duty, no work, nothing to be gained by praying, nothing to be lost by doing what you like. Hell, in short, is a place where you have nothing to do but amuse yourself.
You know, I never trust people who don't laugh, who said, "I am serious" and act as if they put airplane glue on the back of their hands and stuck the glue to their foreheads. I think, "You're not serious; you're boring as hell."