I.
When youth his fairy reign began,
Ere sorrow had proclaimed me man;
While peace the present hour beguiled,
And all the lovely prospect smiled;
Then, Mary! 'mid my lightsome glee
I heaved the painless sigh for thee.

II.
And when, as tossed on waves of woe,
My harassed heart was doomed to know
The frantic burst, the outrage keen,
And the slow pang that gnaws unseen;
Then shipwrecked on life's stormy sea,
I heaved an anguish'd sigh for thee!

III.
But soon reflection's power imprest
A stiller sadness on my breast;
And sickly hope with waning eye
Was well content to droop and die:
I yielded to the stern decree,
Yet heaved a languid sigh for thee!

IV.
And tho' in distant climes to roam,
A wanderer from my native home,
I feign would soothe the sense of care
And lull to sleep the joys, that were!
Thy image may not banished be--
Still, Mary! still I sigh for thee.

Samuel Taylor Coleridge

http://www.poemhunter.com/poem/the-sigh-2/