This is a powerful idea introduced to me in Deep Work.
I was doing it, but then stopped. I definitely want to get back into it. Instead of looking at my phone
The goal of productive meditation is to take a period in which you’re occupied physically but not mentally—walking, jogging, driving, showering—and focus your attention on a single well-defined professional problem.
Sure, it might help productivity a little bit, but this practice has the ability to rapidly improve your ability to think deeply.
By forcing you to resist distraction and return your attention repeatedly to a well-defined problem, it helps strengthen your distraction-resisting muscles, and by forcing you to push your focus deeper and deeper on a single problem, it sharpens your concentration.
You’ll run into these things: