"the fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one."
George Bernard Shaw
Being a believer will make you happy, it means you've turned off your brains and all your ills will be taken care of magically and it isn't your fault. When you figure out it isn't happening then shit hits the fan. Starting to think again is an unsettling process.