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. Depending on your profession, this problem might be outlining an article, writing a talk, making progress on a proof, or attempting to sharpen a business strategy. As in mindfulness meditation, you must continue to bring your attention back to the problem at hand when it wanders or stalls.
( Cal Newport )
[ Deep Work: Rules for Focused ]
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