@Jch,
It's funny how often philosophical threads have overlapped with my own thoughts of the time. I'm reading The Brothers Karamazov at the moment and this has inspired thoughts in me as to the ethical and moral value of religions like Christianity where control of the believers is exerted in some fashion through promise of unfeasibly large rewards or punishments.
If I had my mind but for one change: that I believed in God, Christ, the Bible, Satan, Heaven, Hell et al, how could I ever be happy? Whatever I do or don't do in this life, I am always bearing in mind the next. If I want to do X but X is sinful, I deprive myself of X so that my next life will be good. If I don't want to do Y but the Bible says I must, I shall do it for the sake of my next life. I can't imagine this bringing me happiness, since I will spend my whole life doing what I must do for the sake of the next: that is, I suspend happiness in this life for the sake of happiness in the next.
Knowing (I'm just normal me now) that there is no next life, I can't help but feel that there's something grossly immoral about this. How many people's lives have been ruined or neglected for the sake of the next life? How many people have struggled with conflict between desire and religion?
Perhaps we all do this though... suppress our desires for the sake of a future that never comes.