The waves run up the shore
and fall back. I run
up the approaches of God
and fall back. The breakers return
reaching a little further,
gnawing away at the main land.
They have done this thousands
of years, exposing little by little
the rock under the soil’s face.
I must imitate them only
in my return to the assault,
not in their violence. Dashing
my prayers at him will achieve
little other than exposure
of the rock under his surface.
My returns must be made
on my knees. Let despair be known
as my ebb-tide; but let prayer
have its springs, too, brimming,
disarming him; discovering somewhere
among his fissures deposits of mercy
where trust may take root and grow.
R.S. Thomas (1913-2000), ‘Tidal’, Mass for Hard Times (1992).