Siegfried Sassoon - Microcosmos

I am that fantasy which race has wrought
Of mundane chance-material. I am time
Paeaned by the senses five like bells that chime.

I am that cramped and crumbling house of clay
Where mansoul weaves the secret webs of thought.
Venturer--automaton--I cannot tell
What powers and instincts animate and betray
And do their dreamwork in me. Seed and star,
Sown by the wind, in spirit I am far
From self, the dull control with whom I dwell.

Also I am ancestral. Aeons ahead
And ages back, both son and sire I live
Mote-like between the unquickened and the dead--
From whom I take, and unto whom I give.

Siegfried Sassoon

http://www.poemhunter.com/poem/microcosmos/