The splendor falls on castle walls
And snowy summits old in story:
The long light shakes across the lakes
And the wild cataract leaps in glory.
Blow, bugle, blow, set the wild echoes flying,
Blow, bugle; answer, echoes dying, dying, dying.

O hark, O hear! how thin and clear,
And thinner, clearer, farther going!
O sweet and far from cliff and scar
The horns of Elfland faintly blowing!
Blow, let us hear the purple glens replying,
Blow, bugle; answer, echoes dying, dying, dying.

O love they die in yon rich sky,
They faint on hill or field, or river:
Our echoes roll from soul to soul,
And grow forever and forever.
Blow, bugle, blow, set the wild echoes flying,
And answer, echoes, answer, dying, dying, dying.

Alfred Lord Tennyson

http://www.poemhunter.com/poem/the-splendor-falls/