At the very end of the play, Citizen symbolically
becomes Solly, putting on his hat and picking up his walking stick in a way that suggests he will take up the old man’s legacy—just like Black Mary will someday continue Aunt Ester’s legacy. When he looks at the letter from Eli’s sister, it’s reasonable to assume that he plans to travel down to Alabama to make sure she’s all right, thus picking up where Solly left off. He has, then, undergone a total transformation throughout the course of the play, going from someone who thinks mainly of his own well-being to someone who willingly helps others.