Ancient night and the unruly salt
beat at the walls of my house.
The shadow is all one, the sky
throbs now along with the ocean,
and sky and shadow erupt
in the crash of their vast conflict.
All night long they struggle;
nobody knows the name
of the harsh light that keeps slowly opening
like a languid fruit.
So on the coast comes to light,
out of seething shadow, the harsh dawn,
gnawed at by the moving salt,
swept clean by the mass of night,
bloodstained in its sea-washed crater.

Pablo Neruda

http://www.poemhunter.com/poem/the-night-in-isla-negra/