Henry Wadsworth Longfellow

The rocky ledge runs far into the sea,
  And on its outer point, some miles away,
The Lighthouse lifts its massive masonry,
  A pillar of fire by night, of cloud by day.

Even at this distance I can see the tides,
  Upheaving, break unheard along its base,
A speechless wrath, that rises and subsides
  In the white lip and tremor of the face.

And as the evening darkens, lo! how bright,
  Through the deep purple of the twilight air,
Beams forth the sudden radiance of its light
  With strange, unearthly splendor in the glare!

Not one alone; from each projecting cape
  And perilous reef along the ocean's verge,
Starts into life a dim, gigantic shape,
  Holding its lantern o'er the restless surge.

Like the great giant Christopher it stands
  Upon the brink of the tempestuous wave,
Wading far out among the rocks and sands,
  The night-o'ertaken mariner to save.

And the great ships sail outward and return,
  Bending and bowing o'er the billowy swells,
And ever joyful, as they see it burn,
  They wave their silent welcomes and farewells.

They come forth from the darkness, and their sails
  Gleam for a moment only in the blaze,
And eager faces, as the light unveils,
  Gaze at the tower, and vanish while they gaze.

The mariner remembers when a child,
  On his first voyage, he saw it fade and sink;
And when, returning from adventures wild,
  He saw it rise again o'er ocean's brink.

Steadfast, serene, immovable, the same
  Year after year, through all the silent night
Burns on forevermore that quenchless flame,
  Shines on that inextinguishable light!

It sees the ocean to its bosom clasp
  The rocks and sea-sand with the kiss of peace;
It sees the wild winds lift it in their grasp,
  And hold it up, and shake it like a fleece.

The startled waves leap over it; the storm
  Smites it with all the scourges of the rain,
And steadily against its solid form
  Press the great shoulders of the hurricane.

The sea-bird wheeling round it, with the din
  Of wings and winds and solitary cries,
Blinded and maddened by the light within,
  Dashes himself against the glare, and dies.

A new Prometheus, chained upon the rock,
  Still grasping in his hand the fire of Jove,
It does not hear the cry, nor heed the shock,
  But hails the mariner with words of love.

"Sail on!" it says, "sail on, ye stately ships!
  And with your floating bridge the ocean span;
Be mine to guard this light from all eclipse,
  Be yours to bring man nearer unto man!"