How does freedom of expression protect individual liberty

What is most likely nelson mandela's purpose of using third person point of view after introducing himself in his introductory paragraphs

You seal resign myself to you also i guess what you mean, i behold from the beach your crooked inviting fingers, i believe you refuse to go back without feeling of me, we must have a turn together, i undress, hurry me out of sight of the land, cushion me soft, rock me in billowy drowse, dash me with amorous wet, i can repay you. in this excerpt from "song of myself," which literary device does whitman use to address the sea? alliteration allusion apostrophe onomatopoeia

What information can you find in the interview that you cannot find in the informational piece?