In this work, Sakamoto and Takatani explore the impossibilities of communicating. Words are taken from Plato's Allegory of the Cave, W. B. Yeats' A Dialogue of Self and Soul, and the dialogue between a gorilla and a man in Daniel Quinn's novel Ishmael, and are converted into sounds. Two computer-controlled pianos play notes derived from the words, and a laser projector projects the quoted text onto the wall at intervals.