“The Long and the Short of It” by W.S. Merwin

As long as we can believe anything
we believe in measure
we do it with the first breath we take
and the first sound we make
it is in each word we learn
and in each of them it means
what will come again and when
it is there in meal and in moon
and in meaning it is the meaning
it is the firmament and the furrow
turning at the end of the field
and the verse turning with its breath
it is in memory that keeps telling us
some of the old story about us