The word “invisible” comes up often as Bigger thinks about what he’s done. Bigger reflects on the fact that by killing Mary, “he had shed an invisible burden he had long carried” and that the act had made him realize that “his hands held weapons that were invisible.” Of his girlfriend, Bigger says “Bessie, too, was very blind” and he has a similar impression of his family, becoming emboldened when he sees “how blind they were.” Other people’s “blindness” makes him invisible.