I think Robert Frost is the God of poetry. This is proof of how great that man was. 8 lines and such power!

***

The way a crow
Shook down on me
The dust of snow
From a hemlock tree
Has given my heart
A change of mood
And saved some part
Of a day I had rued.

– Robert Frost

Source: http://www.poetryfoundation.org/poem/173526