coming undone

I came upon a strange loose-end
Within my favorite sweater.
As I pulled upon the thread,
I started to feel better.
Row after row, the cord unraveled,
Over and under my body it traveled.
As the colors of yarn grew brighter,
The chains ‘pon my soul grew lighter.
I cut the last knot, nimble and deft,
Only then did I find,
There was none of me left.