Khayyam

Literal:
The rose claimed to be Jacob of grass and dirt
A red ruby resurrected with a green skirt
I said if this is so, show a sign of your hurt
Said just take a look at my bloody shirt

Meaning:
If you have a perceptive mind
And look closely you will find
The whole history of humankind
Jacob’s bloody shirt, even blind.

Source : http://www.okonlife.com/poems/page4.htm