From: The Map 

“Land lies in water; it is shadowed green.
Shadows, or are they shallows, at its edges
showing the line of long sea-weeded ledges
where weeds hang to the simple blue from green.
Or does the land lean down to lift the sea from under,
drawing it unperturbed around itself?
Along the fine tan sandy shelf
is the land tugging at the sea from under?”

by Elizabeth Bishop, 1911-1979
From North & South, Houghton Mifflin, 1946