The parable of the pictures on the desktop

Once the sysadmin asked:
- Teacher, would you like a beautiful picture for your desktop? I have a nice collection of desktop wallpapers with a starry sky and moral law.
- Why do you think my current wallpaper is worse? - asked Yin Fu Wo in reply.
- I do not know what your picture is now. I have never seen your desktop. You always have a lot of windows open.
“I never saw him either,” said Yin. - I work.