Yet the Greek words logos (from which English logic comes) and mythos (English myth) have similar meanings. Both can be translated as "word," in the sense of information. Logos refers to a rational thought or calculation, while mythos has come to mean a fictitious narrative or legend involving supernatural beings.
Psychologists believe that such legends, or myths, play an important part in the thinking of many people, even those who claim to be guided by pure reason. "Mythology is not a lie, mythology is poetry, it is metaphorical," said Joseph Campbell. Another mythologist, Sam Keen, adds: "Myth is cultural DNA, the software, the unconscious information, the program that governs the way we see 'reality.' "