From Gulshan-Raz (The mystique rose garden) of Mahmud Shabstari, 1317

Know the world is a mirror from head to foot,
In every atom a hundred blazing suns.
If you cleave the heart of one drop of water,
A hundred pure oceans emerge from it.
If you examine closely each grain of sand,
A thousand Adams may be seen in it.
In its members a gnat is like an elephant;
In its qualities a drop of rain is like the Nile.
The heart of a barley-corn equals a hundred harvests,
A world dwells in the heart of a millet seed.
In the wing of a gnat is the ocean of the life,
In the pupil of the eye a heaven;
What though the grain of the heart be small,
It is a station for the Lord of both worlds to dwell therein.

(Translated by E. H. Whinfield)