There was a time, when I teaching and stressing a bit with my inability to solve global problems, when I found it very useful to go home for lunch (ie, take myself away from the location where the problems were ever-present) and sit in the sun, on a stump in the front garden (it was planted with lots of Oz natives and had leaf-litter mulch instead of a lawn), and watch the ants going about their business. A bit like Stilly's and Bonnie's images, if not as beautiful

It cleared the mind, allowing me to relax. It might be something to add to your armoury of techniques.

Cheers, Rowan