I'm someone who has to be given evidence before I start to believe something. And I just haven't seen enough evidence that there actually is a force much bigger than humans.
I wasn't raised to believe anything, which I believe is the right thing. Because once you're old enough to think for yourself you can choose for yourself. But if you're brought up believing something - it's like you've been brainwashed to believe that fact, to be blunt about it.
I don't care what other people believe - but if they rub their religion into your face; that's when I get rather annoyed. I know they're trying to be a good christian, muslim, bhuddist etc, but I can't help it.