okay hold on, they wont let my answer go through so i'll post this and write it in the comments :)
The event at 11N. Elm was significant for Montag. Here he meets Mrts. Blake, the owner of the house filled with books that they have to burn. She is adamant not to leave her house and books. Before she gets burned with her books, the woman said the quote "Play the man, Master Ridley; we shall this day light such a candle, by God's grace, in England, as I trust shall never be put out." This line is very significant because the woman wants to imply that may her death serve as the spark that will light up a revolution against the government and their stamping out of free thinking. She wants to serve as an example on why she is willing to sacrifice her life for her beliefs. It is significant in understanding fahrenheit 451 because it is the turning point for the protagonist Montag to finally go with his principles and go against the government.
Indicates a state of reality.
Indicative verbs state what is going on at that moment, or what could very possibly happen.
e.g "I run through the forest".
Johnson uses sarcasm in this poem as he expresses the opposite of what he means. When he says "pile on the Black Man's Burden", and gives examples of how people can make black men more miserable than they already are ("his wail with laughter drown"), he is using sarcasm. He clearly does not want people to pile on this burden and make black men's lives harder, but he is saying that people should do it to show them how ridiculous it sounds and to point out that people are already doing that.