Brain lyrics

Peering through the window Some one shut the door The panes are painted black Gray matter on the floor Don't dare to break the glass They'll put a bullet in my head If I open up the window They'll slam it down again Kill thought They show pictures of the outside Teach what they think it looks like Movies made with blue screen Made to read their doctrine Build up a facade Looks like a mirage Think you know a lot? Only what's been taught