Principles of uncertain origin

Now the body of love was found dying
Of a wound that I wrote on her back
From a text that was not illustrated
With instructions not printed in black

But my plea of puerile was accepted
And the statement was carefully read
To the jury who solemnly listened
But insisted on Coleridge instead

So they sent me away in my shackles
With a note I could never appeal
Of a sentence I hardly could finish
And a verse that should never reveal

Still I work at my only redemption
Adding stresses each time that I pray
To the Angels who ponder my ravings
That I scratch on these walls every day