When I run sound in church on Sundays, and a woman at the mic appears to be talking in a tunnel, I reach for the sweepable mid. I boost the lower mid range, maybe add a little high end to brighten it up. Stop and listen, let the sound settle in my ears, adjust 'til satisfied.
When I prepare an insulin shot for my son, I count the carbs in his meal and divide them by 20. I check his blood sugar, and if it's high, I subtract that number from his target number, which is determined by the numbers of hours it's been since he last ate. I divide the result by 100 and add it to the food dose, dial up the pen, give the shot.
You start to want life to be like this, a matter of small adjustments adding up to a desired result.
But then the guitarist plays and it's too jingly, Theo's sugar runs high despite your careful counting, and you see that all of it is a cycle of maintenance, of tweaking your way through.