Comment by hnuser123456

I think the intention is to not even try to identify solutions, or even identify problems. If you're opening this page on your computer or phone, presumably, you have nothing 100% critical pressing right now. Now take it to the extreme, and see if you can quiet your brain for a minute or so. Walking is not as "pure nothing" as sitting and letting your brain wander anywhere as long as it's not reminding you of obligation stress. You might even start to daydream a pleasant setting.