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 flower
Julia Flower
Lynda McDaniels – This script was automatically generated by JWildfire 3.11r2 (05.06.2017) by converting … Details
Flower RE
Flora and Floral, scripts to create amazing looking flower designs, plenty of scope to take these further.
Flower Bunches
Collect your flowers up into bunches, wonderful script that you can take further with more tweaking.