I am eaten without need of plant, nor plow. The product of a worker’s brow. I am left when tears are dry. Born from water, when I meet it, I die.

I am made of tin or steel, I hold the soup for your evening meal. I'm a word for able and allowed to do But when I am empty, you throw me through.

I came before books, I came before knives. My possessions are easy to find. If you need me, find me at pool’s edge.

Take me, hit me, walk all over me Hard and long; I make you rage I'll take you anywhere or nowhere at all A start and an end, and also what lies between The poet's muse, the transient's anthem, a young man's dream Answer my call, or don't I'll go on

A type of me could be why two people don’t understand each other. Another type of me is why you can’t get out of the car park. Or what separates my yard from yours. You break me when you achieve something no one else has. I can be a physical thing or a circumstance. What am I?