Here's a little snippet from Wendell Berry's "The Country of Marriage" (from the collection of the same name):

V.

Our bond is no little economy based on the exchange
of my love and work for yours, so much for so much
of an expendable fund. We don't know what its limits are--
that puts us in the dark. We are more together
than we know, how else could we keep on discovering
we are more together than we thought?
You are the known way leading always to the unknown,
and you are the known place to which the unknown is always
leading me back. More blessed in you than I know,
I possess nothing worthy to give you, nothing
not belittled by my saying that I possess it.
Even an hour of love is a moral predicament, a blessing
a man may be hard up to be worthy of. He can only
accept it, as a plant accepts from all the bounty of the light
enough to live, and then accepts the dark,
passing unencumbered back to the earth, as I
have fallen time and again from the great strength
of my desire, helpless, into your arms.