Since written history, the Shadow has always been a prime object of metaphorical relevance, symbolic interpretations and associations for the psyche, as it is found in virtually all ancients text, folklore and mythology.
“One does not become enlightened by imagining figures of light, but by making the darkness conscious. The latter procedure, however, is disagreeable and therefore not popular.”
― C.G. Jung
"Where there is much light, the shadow is deep."- Johann Wolfgang von Goethe