mitochondria:

                      I

At the edge
of the body’s night
ten moons are rising.

                      2

A scar remembers the wound.
The wound remembers the pain.
Once more you are crying.

                      3

When we walk in the sun
our shadows are like barges of silence.

                      4

My body lies down
and I hear my own
voice lying next to me.

— Mark Strand, excerpt from Seven Poems

(Source: poetryfoundation.org)