You are most miserable because you will be missing out on the thrills of covetousness, missing out on getting the upper hand over your adversaries through cheating.
If it is that there is no God, then you will be missing out on living ostentatiously, missing out on indulging your sexuality in promiscuous ways. Yet, you believe Christ rose from t he dead and that He has gone to prepare a place for you, that where He is, you may be also. And if this is not so, not only are you most miserable but also think of it this way, what have you to lose?
Would you consider all the times you tried to live right, a waste? All the times you loved your neighbor as yourself, all the times you did not steal, lie, hate, murder, covet – even when it was convenient – a rip off? All the countless hours you spent in church worshiping the one who asked all to be meek and wise – would that all be in vain? Dear one, you have nothing to lose if there isn’t a heaven, and everything to lose if there is.