"And every man is free" In the poem "I dream a world" a world with freedom is the Motif. It means a the speaker wants a world that is Segregation free.
"I've seen my buddy lying where he fell" In "Will V-Day Be Me-Day Too" Imagery is in "I've seen my buddy lying where he fell". It about two black soldiers and one is dead. But they won't get recognized like white men.
"This fenced-off narrow space assigned to me" In "I look at the world" "This fenced-off narrow space assigned to me" resembles how A.A's were only allowed to use certain things and be in certain areas.