DRIFT
Drift or drifting is often referred to in unappealing terms.   But drift can be a force of nature, like when lava from a volcano is drifting down it's sides carrying chunks of rock that drift along in the molten lava.   For me this image captures that slow drifting movement.

https://youtu.be/cEU-dXsnNF0
You Can’t Always Get What You Want
A HARD TRUTH!
"You can’t always get what you want
But if you try sometimes well, you might find, 
You get what you need"
https://youtu.be/krxU5Y9lCS8