Understading compiling of sass

Hi and thanks again for this awesome theme.

I am trying to fully understand how to use this theme and how compass 'works'. I am doing a live site, and have worked on my local mamp installation, have installed Compass on the terminal and told it to 'watch boilerplate' and all has worked well while in development stage. Now that I have finished my site, I have uploaded drupal7 and the site is live.

I made the advised changes to the config.rb file that were given in the readme.txt, changing environment to production. I then gave the commands in the terminal to 'compass clean' and 'compass compile'. Both gave no result, so I assumed they worked.

What I would like to know is what actually happens in this process. And more importantly, if I have my site live, and then realise there are a couple of theming matters I want to change or fix up, do I then have to go back to my local development environment, change environment back to development and then edit the _sass.scss files and then run compass clean and compass compile again?

I need to understand how it does this and would greatly appreciate a bit more documentation on this.

I have watched this talk already http://www.slideshare.net/nathansmith/drupal-compass

and have read a bit more on the compass site, but still not clear.

Many thanks if you can clarify these basics.