"Nothing, to my way of thinking, is a better proof of a well-ordered mind than a man's ability to stop just where he is and pass time in his own company." -SenecaMany people run to and fro in a mad rush to distract and entertain themselves to death. Sitting and thinking, being still and quiet with one's own thoughts, is largely uncomfortable if you've never done it before.
If you have never taken the time to sit quietly and think and work through what it is you believe and why you believe it, then the first time you try to do so, you will have a veritable storm of uncomfortable thoughts and feelings to process and deal with.
I think the first response to this line of reasoning might be, "oh yeah, I've done that before." If you've done it once upon a time, or one day long ago, or even one day last week, it's been too long. Sit and think, today.