Now she saw iridescent color, mixed into a light which traveled like a liquid; it formed buzzsaws and pinwheels and crept upward on each side of her. Directly before her the huge Thing throbbed menacingly; she heard its imperative, angry voice summoning her upward. The urgency of its activity frightened her; it demanded, rather than asked. It was telling her something; she knew what it meant by its enormous pounding. Wham, wham, wham, it went and, terrified, filled with physical pain,

-Philip K. Dick, A Maze of Death