Scribbling Shackles

I don't know of the next breath,
Or of the schemes planned at length,
of the lofty aims,
Or of the incessant gains,
of the shackles of pain,
Or of the afflictions that maim,
Only the words I pen hereforth shall remain,
Bearing testimony through time's lane. . .

It's the criticism and the comments that keep a poet alive, so please oblige me with your opinion. All reviews positive/negative appreciated. Thanking you in anticipation of your valuable critique.