That's how concentrating your attention goes. You pick a thing within your field of attention, center your attention upon it and narrow your attention until th

That's how concentrating your attention goes. You pick a thing within your field of attention, center your attention upon it and narrow your attention until the thing fills your entire field of attention. Which gives you a new field of attention. Then you repeat the process. And so on. A kind of infinite shrinking of perspective. This is what artists, scientists and engineers do. It's a bit insane. It's the cornerstone of our civilization.