My prime of youth is but a frost of cares,
My feast of joy is but a dish of pain,
My crop of corn is but a field of tares,
And all my good is but vain hope of gain.
The day is gone and I yet I saw no sun,
And now I live, and now my life is done.
The spring is past, and yet it hath not sprung,
The fruit is dead, and yet the leaves are green,
My youth is gone, and yet I am but young,
I saw the world, and yet I was not seen,
Despite the jaunty rhythm of this line its meaning is sad. 
 The technique of using a root word in different grammatical forms in a line of poetry is  polyptoton . The effect is rhythmic and the repetition ‘spring’ and ‘sprung’ is memorable. Note also that the two words are  alliterative  with the matching ‘spr’s and  consonantly  rhymed.
Tichbornes Elegy