When you teach people to live their lives focused on what they will get in the next life, you can lead them into doing all kinds of things. Happiness awaits in the next life, but only if they are willing to suffer greatly in this one. Why try to get ahead in life? Why try to find happiness and enjoy yourself? Nothing here on earth matters, so why bother? This is a very sad state of affairs. There is much here on earth, in the every day things we experience, that is beautiful and heavenly. The only purpose to having people stay focused on the next world is so they will more readily forget what their lives are here on earth. Makes it very easy to get good, honest people to work themselves to death for a cause, stay dirt poor and give to an institution (which may or may not use those funds for the true good of their fellow humans [I’m not speaking against charity, rather the abuse of it that has gone on for centuries in the Catholic church and others]), and submit themselves to leadership that will tell them they are filthy and worthless without Christ and should therefore gladly give all they have so they might receive rewards in the next life.