Analysis of A Fragment

Should fickle hands in far-off days
No longer stroke thy hair,
And lips that once were proud to praise
Forget to call thee fair,
Sigh but my name, and though I be
Mute in the churchyard mould,
I will arise and come to thee,
And worship as of old.

And should I meet the wrinkled brow,
Or find the silver tress,
What were't to me, it would be thou,
I could not love thee less.
'Gainst love time wages bootless strife,
What now is would be then;
The cry that brought me back to life
Would make thee young again.