What is your favorite poem or poet?

My favorite poets are Rainer Marie Rilke and Percy Shelly.

My favorite by Rilke is I Am, O Anxious One:

I am, O Anxious One. Don't you hear my voice
surging forth with all my earthly feelings?
They yearn so high, that they have sprouted wings
and whitely fly in circles round your face.
My soul, dressed in silence, rises up
and stands alone before you: can't you see?
don't you know that my prayer is growing ripe
upon your vision as upon a tree?
If you are the dreamer, I am what you dream.
But when you want to wake, I am your wish,
and I grow strong with all magnificence
and turn myself into a star's vast silence
above the strange and distant city, Time.

My favorite Shelly poem is Prometheus Unbound which is way too long to post.
Anyway please share you favorites I need some new poetry!