Significance of Sacred Miracle Cave.

The Sacred Miracle Cave is a somewhat recently discovered cave owned by Dwayne, Kyle, and Lyle Hoover. Kyle and Lyle Hoover supervise the cave's daily activities. The cave has been turned into a tourist attraction, and various untrue claims about its putative ancient history have been advanced as fact. The cave unfortunately begins to fill up with industrial waste that threatens to destroy most its rock formations (a structural diagram of some of the industrial waste is presented in Chapter 20, p. 227). The cave is notable because it is referenced numerous times throughout the narrative, but plays no significant or symbolic role within the novel. Thus a cave - a hollow nothingness whose existence is, of course, a negative - is a perfect symbol for a constantly referenced narrative object, which holds no textual significance.