Think of tags as like a book index where you find words and which pages they are on, the same principle applies here. Although it's taken a stage further so it might not be the word, but the subject, so for example if you're looking for things to do with fractal gradients for example. A tag may bring back posts with gradient files, as well as posts that discuss gradients, or tutorials about them.
Posts tagged as flame
Trillium script based on flame
Script based on a flame by that name. Has Randomization. Use of if statement … Details
Tom’s Spiral Spiral Rev 3
01/09/2013 Rev.3 Based on Tom Allen’s Spiral Spiral flame! Dedicated to the folks @ … Details