>>5792578Its not an intentional thing.
You just shut the fuck up and start drawing.
It's kind of like how you can lay in bed all you want but if you keep worrying about how long you have left until you need to wake up you'll never go to sleep. Or how if you smoke weed but spend the whole time trying to figure out whether or not you're actually high then even if you are high you won't really feel it unless you're completely fucked up.
Focus on the drawing, focus on seeing stuff. It's not some fundamental thing, its basically just flow state except the author didn't know that term.