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Despite his earthbound approach and his preoccupation with scientific fact, Aristotle had an acute understanding of the nature and importance of religion and mythology. He pointed out that people who had become initiates in the various mystery religions were not required to learn any facts “but to experience certain emotions and to be put in a certain disposition.”35 Hence his famous literary theory that tragedy effected a purification (katharsis) of the emotions of terror and pity that amounted to an experience of rebirth. The Greek tragedies, which originally formed part of a religious festival, did not necessarily present a factual account of historical events but were attempting to reveal a more serious truth. Indeed, history was more trivial than poetry and myth: “The one describes what has happened, the other what might. Hence poetry is something more philosophic and serious than history; for poetry speaks of what is universal, history of what is particular.”36 There may or may not have been a historical Achilles or Oedipus, but the facts of their lives were irrelevant to the characters we have experienced in Homer and Sophocles, which express a different but more profound truth about the human condition. Aristotle’s account of the katharsis of tragedy was a philosophic presentation of a truth that Homo religiosus had always understood intuitively: a symbolic, mythical or ritual presentation of events that would be unendurable in daily life can redeem and transform them into something pure and even pleasurable.
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Karen Armstrong (A History of God: The 4,000-Year Quest of Judaism, Christianity and Islam)