Dark side of the moon

Maybe a strange choice tonight but Brain damage from Pink Floyd's Dark side of the moon is talking to me tonight

And if your head explodes with dark forebodings too
I'll see you on the dark side of the moon.

The lunatic is in my head.
The lunatic is in my head
You raise the blade, you make the change
You re-arrange me 'til I'm sane.
You lock the door
And throw away the key
There's someone in my head but it's not me.