You cannot contribute anything to the ideal condition of mind and heart known as Brotherhood, however much you preach, posture, or agree, unless you live it.
With the question of the effect of a poem, the topic of investigation shifts from that of textual autonomy to textual reception - to the issue of what we actually look for or find in reading a poem.
When I was in Philadelphia during the Depression in 1930 or '31, I got a very sad job as a night watchman in a garage. The cars in the garage had been abandoned by their owners, since they had lost their jobs and couldn't keep up the payments.