SEAFARER
And learn O voyager to walk
The roll of earth, the pitch and fall
That swings across these trees those stars:
That swings the sunlight up the wall.
And learn upon these narrow beds
To sleep in spite of sea, in spite
Of sound the rushing planet makes:
And learn to sleep against this ground.
--Archibald MacLeish
collected in
Poems of the Sea,
selected and edited by J. D. McClatchy
Everyman's Library