Porcupine Tree Nostalgia Factory

A Caterpillar crawled to me one day and said
Oh what the hell goes on inside your swollen head?
I don't believe that you can see as much as I
Now close your eyes and tell me what do you spy?

The caterpillar gasped at me and said
My god if that's what's going on inside your head
You can see so much more than I
I think it's time to turn into a butterfly.