I found it in the cellar of a caravanserai
Under a copper lamp,
An ancient handwritten manuscript of the Isagoge,
Perhaps dating from the Seljuk Empire,
Wine stains on every page.
I don’t know whether it was the author or a reader,
But right at the end, in a secret place,
He added these frightentng words:
The sky is our brain’s membrane,
Birds and clouds wander around in it.