My soul would one day go and seek
For roses, and in Julia's cheek
A richess of those sweets she found,
As in another Rosamond;
But gathering roses as she was,
Not knowing what would come to pass,
it chanced a ringlet of her hair
Caught my poor soul, as in a snare;
Which ever since has been in thrall;
--Yet freedom she enjoys withal.

Robert Herrick

http://www.poemhunter.com/poem/how-his-soul-came-ensnared/