Explain to me worship

[Trepa Mayfield]

First off, a bit of context: I am an atheist, whose parents were both atheists, and have never had close enough theist friends to discuss religion. So I've sort of had to glean what I could from the internet and such. I think I understand faith. I've got mythology well in hand. What I don't understand, at all, is the concept of worship.

What is it, exactly? Why is it good?