Never forget the Reality of Duality within the Universe. Everything is dual in nature (positive/negative, hot/cold, etc), this is explained in the Kybalion as being the Hermetic Principle of Polarity:
“Everything is Dual; everything has poles; everything has its pair of opposites; like and unlike are the same; opposites are identical in nature, but different in degree; extremes meet; all truths are but half-truths; all paradoxes may be reconciled.”
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