That's what perfect means. You're finished.
When you're waiting for a bus, the thing to do is smoke a cigarette.
I know perfectly well that you can't not want anything and live.
You have to want something or you're finished.
When you get immersed in whatever you're writing, the world does suddenly get so filtered through what you're writing. And then of course what you're writing then filters the world right back.
That was one of the problems with the Narcissus figure. Here is a face looking at a face, and the problem is the image of the thing is never actually the thing. You try and grab it and it's not there. It's water. It disappears.