The sun and the crescent moon aligned with each other (in the opening shot) was a symbol of Zoroastrianism, an ancient Persian religion that predated Buddhism and Christianity and was based on the teachings of the prophet Zoroaster (also known as Zarathustra). This particular alignment symbolized the eternal struggle between light and darkness. Appropriately enough, the famous "2001: A Space Odyssey Theme" is from "Also Sprach Zarathustra" (Thus Spake Zarathustra), the symphonic poem by
Richard Strauss, based on a book by
Friedrich Nietzsche, which contained his famous declaration "God is dead". One can assume, given
Stanley Kubrick's working methods, that none of this was accidental.
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