I think it is false. Let's say the poem is written by a negative people, all one write is all about hate and negative minds, talking about bad ideas.
If someone is being negative like that, one will agree what the poen about. If one is a positive person, one will disagree and maybe giving positive ideas.
Letsay a poem about father's love. we will agree the things wrriten in the poem as we have a father love us like this too.
But to an orphan? he or she might not have the same thinking because they would never know, and the father love in the poem bring different meaning.
sorry for typing so long