What metaphors are used in King of the Bingo Game by Ralph Ellison?

The Bingo King feels that the wheel is symbolic of his destiny, because it determines whether Laura lives or dies. If he cannot control it and win the jackpot, he would be penniless; therefore, Laura would not receive adequate medical care and would eventually die. Likewise, if Blacks cannot influence the "system," so that it also works to their advantage, then they also would metaphorically die. He is enslaved by an understanding that makes his black heritage something more than a mere acceptance of circumstances, because he knows that as long as he presses the button, he can control the jackpot, his life.