In Kurt Vonnegut's Cat's Cradle, the author uses satire to target religious themes. Bokononism, Vonnegut's artificial religion, is built on foma, or harmless falsehoods. Bokononists believe that good societies can only be built by always keeping the tension between good and evil high, and that there is no such thing as absolute evil (Schatt 64). They created their own language with words like karass, a group of people organized by God to do his work for him (Vonnegut 2), and granfalloon, a false karass (91). The Books of Bokonon are the religious texts of Bokononism. They were originally created by two men, Lionel B. Johnson and Earl McCabe. The two men find themselves on the shore of San Lorenzo, a small, corrupt and poor island. The people, desperate for money and happiness, let the two men rule their island. However, when McCabe becomes a tyrant, the citizens begin to consider rebellion. To quell people's anger, Johnson creates the religion of Bokononism and writes The Books of Bokonon. Vonnegut uses The Books of Bokonon to satirize all other holy scriptures. It also uses a Bokononist ritual, boko-maru, to mock other spiritual rituals and ceremonies. Finally, Vonnegut uses the apocalyptic ending of Cat's Cradle to mock many religions' beliefs about what will happen when the world ends..