A Supermarket in California carried the dead into the underworld, across the river Styx. The River Lethe was a different river in the underworld, which caused those who drank its waters to experience complete forgetfulness. The shades of the dead were required to drink the waters of the Lethe in order to forget their earthly life. In "Story Line", Ian Marshall suggests that the poem is written to show the differences in American life depicted by Whitman and that which faces Ginsberg in the 1950s: "It's the distance of a century—with Civil War and the 'triumph' of the Industrial Revolution and Darwinism and Freud
The Arm of the Starfish evokes the historical Macrina's scar, which her brother Gregory writes about in his "Life of Macrina". Classical names used in the book include Polyhymnia, the fictional Portuguese island of Gaea, named for a Greek goddess associated with the Earth, and Typhon, the deadliest monster in Greek mythology and the legendary "Father of Monsters." Finally, the names of Kali Cutter and Joshua Archer are significant. Kali is the name of the Hindu goddess of change, power and destruction, while the girl's surname indicates that she and her father have the power to cut (i.e., wound) others, both figuratively and literally. Joshua,