I love how when you are trying to learn something new and complex, your brain works silently in the background on the concept, even when (especially when) you are working on some unrelated task. So the next time you come back to the problem you have some fresh insight.
I love it except when I am trying to sleep.
I was in that half conscious state trying to sleep and my brain wanted to think about trex, and what I want to do with it.
Trex. Tracks. Train tracks? No.
"It eats outlines."
"It chews up OPML files and spits out web pages."
And then BOOM: T REX.
That's why there's a picture of a tyrannosaurus rex in the sidebar. Of course that realization isn't going to help me figure out what I want to do with my CSS, but still - pretty darn cool.
Maybe on another level it is helpful though, because you can get so caught up in the details of the tool, that you forget the original purpose of the tool.