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.

molecule1

Spirit Molecule One

This blur experimentation is going well, the main reason I like Blur is the 3d effect it often gives, and especially Blur3D, which gives a kind of 3D glowing light effect. Here I tried adding twin sphericals as I’ve been playing with also lately and some others. Good fun to play with.