Number symbolism - Pythagoreanism, Numerology, Mysticism
https://www.britannica.com/topic/number-symbolism/Pythagoreanism
WebThe number 2 symbolizes many of the basic dualities: me/you, male/female, yes/no, alive/dead, left/right, yin/yang, and so on. Dualities are common in human approaches to the world, probably because of our preference for two-valued logic—yet another duality, true/false.
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