Kabir (1440 - 1518 / Pratapgar, Uttar Pradesh, India)

Brother, I've seen some
Astonishing sights:
A lion keeping watch
Over pasturing cows;
A mother delivered
After her son was;
A guru prostrated
Before his disciple;
Fish spawning
On treetops;
A cat carrying away
A dog;
A gunny-sack
Driving a bullock-cart;
A buffalo going out to graze,
Sitting on a horse;
A tree with its branches in the earth,
Its roots in the sky;
A tree with flowering roots.

This verse, says Kabir,
Is your key to the universe.
If you can figure it out.