What is significant about the author's imagery of the Rooster Coop in the novel?

This image represents key aspects of the book’s plot (i.e. in that Balram feels that he is trapped in just such a physical and/or psychological “coop, and is struggling to get out) and its themes: the freedom vs. servitude theme, the wealth vs. poverty theme, and the Light vs. Dark theme are all evoked by the image of The Rooster Coop.