powder

I am powder,
powder astray, in the wind.
A giant tree keep me from freedom,
Chains invisible -
yet there.
To release would not bring cheer joy -
but too a sigh of grief.
What do I know?
I am powder spread upon a field.
Gather my shatterings,
save the last leaf. Please.
"An eye for an eye makes you blind"
I know this, so why do I still try to siege?
My victory is that of withdrawl,
with my hands self-tied I concentrate,
breathe, till it's over. Yes!
I am powder, but it doesn't mean
I have no substance.