Abstracted

Think of an abstract concept - and put that word into Google images. Recently I tried "posture"; today for no particular reason (no reason, that is, apart from avoiding getting on with some urgent work) I tried "humour" - and landed on a chemistry site, which had this useful chart:

and, next, on someone's dissertation, which starts: "The following exploration follows from a concern that modern civilization is boring itself to death trying to manage change -- and compensating for its inadequacies with respect to the challenge by indulgence in distractions and substance abuse. There is a need for radical reframing -- of a playful nature. Essentially the argument is that "no play equals no engagement" -- at least of any sustainable form."

As you can see from the chart (click on it to enlarge), it gets serious:
Don't know where this blogger found this note, but it kinda makes sense: