" Inscribed on it was a verse from the Quatrains of Omar Khayyam, the eleventh-century Persian mystic. Reading the words aloud I prepared for a most amazing journey:

The sages who have compassed sea and land,
Their secret to search out and understand,
My mind misgives me if they ever solve
The scheme on which the universe is planned. "

― Tahir Shah , Beyond The Devil's Teeth