The title of this woodcut is taken from a line in Samuel Taylor Coleridge's poem 'This Lime Tree Bower My Prison', which was written for his friend Charles Lamb.
..Now, my friends emerge
Beneath the wide wide Heaven-and view again
The many-steepled tract magnificent
Of hilly fields and meadows, and the sea,
With some fair bark, perhaps, whose sails light up
The slip of smooth clear blue betwixt two Isles
Of purple shadow