Drew this years ago. According to cosmology and nature-based spirituality, light and darkness are not coherent with good and evil, but the masculine traits and the feminine traits of the universe. Taoism and Pagan Spiritualities in particular believe this to be the case, who celebrated both the light and the darkness in this sense since before the Rise of Christianity. Since it, light and darkness have been interpreted as eternally struggling forces, but the less familiar interpretation is that the two sides are opposite and dependent on each other, and that the struggle is more about the balance between the two. Two dark things go bad, but TOO LIGHT and the same will happen.