Hi. You have not indicated the poem to which this question refers, which makes it impossible for it to be answered. However, when searching for your question on the internet, I was able to find another question, exactly like yours, which featured the poem "Resisting Arrest." If that's the case for you, I hope the answer below will help you.
The words used in the poem convey a sense of impotence, that nothing can be done to free the poem from being found guilty. This frustration and impotence is a result of the poem's inability to defend itself and this refers to the lack of justice, since defense is a right of any accused, the poem, however, does not have this right.
This feeling can be seen by the lines:
"This poem will be guilty"
" this poem will fail."
" this poem knew it was dangerous to ask why?"
