is not worshipping God a sin?

If you are a protestant, absolutely yes, you will go to hell.

There's that thing they say - Is God willing to prevent evil, but not able? Then he is not omnipotent. Is he able, but not willing? Then he is malevolent. Is he both able and willing? Then whence cometh evil? Is he neither able nor willing? Then why call him God?

Anyway the counterpoint to that is a feint on the anthropomorphic nature of the almighty - like well, you have to accept, find part of yourself, be ready to ascend, that Jewish cultural thing, blah, blah, blah. Not that I disagree with the mystical Quaker metaphor for good-livin' kindof take on it, although the 3rd Humanist Manifesto does, just that one way or t'other, including even the possibility of a higher power just as they say - it's a moot point, either it's a sin not to worship and we're screwed anyway, or do as thou will shall be the whole of the law.

As I understand the terminological difference, a "crime" denotes the transgression of man's laws and a "sin" a transgression of a god's law. Only one of them is real.

Well pick a god. I'm pretty sure the hebrew teachings don't include a hell. But the muslims built on the christian concept. Wish I knew more about it but there's far more interesting things to learn about.

Be it sin or crime, these things stem from negative emotions. Fear, anger, hatred, desperation.

We will never be punished or rewarded for our emotions. We will however be rewarded or punished by our emotions..

Amen

Come, come, come, those are four of my favorites. They're not the fun ones, if you're going to lack self-control it's probably better to be going ape-shit with love of humanity, but if that's the case you're stuffed anyway. Those are the goal-oriented emotions...

I think the trick is to be mindful and nurture the emotions you need or want. Easy to say, not to do.