You just have to open yourself to view the blacknet and it will appear to you. It sounds like you have too many images entering your mind as you do this so the system view is obstructed. I suppose it will work better with practice. Try to remain blank, and then just think of a file system viewer on a computer.
The greys you see may be the greens, they hang around the blacknet more than the regular greys. They're extremely autistic so you can't ask them vague things like that. They won't understand it. Ask them to show you the file manager view or something instead.