Both the boy in the poem and the boy in Araby suffer from separation anxiety. They both cannot accept the fact that reality has struck their "world". It is a realization that sometimes things don't go just as how you thought it would be, and it's a struggle to keep up with the truth.
Tone is the author's attitude toward the speech. Since we know that Dr. King was the author and presenter of the speech, this was one of inspiration, seriousness, hope, and encouraging. This is not to be confused with mood. Mood is your feelings from the text. So, while the tone may be one of hope, to say it was 'hopeful' would be a mood (if that is indeed what you are feeling when hearing it.)
Voce e brasileiro (a)
ou Portuguese?
EU acho que e assim:
"I love you my love."
Squall = storm
Affluent = millionaire
Deface = criminal