Why do you believe?

Why do you believe what you believe? The vast majority of people believe what their parents believed, what the majority of people in their society believed.

If you'd been born somewhere else, you'd be just as convinced that an entirely different religion was true. Oh, some people do change religions - usually not too drastically - but the vast majority follow the same general faith that they were raised to believe.

And that's a very poor reason, indeed.