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by Tarl Warwick (Editor), Annie Besant (Author)
This little text is a Theosophical work precribing an interesting explanation for evil; partly that is is merely resistance from progress, and partly that it is spiritually necessary, because only against the backdrop of a struggle against evil can any progress be made towards enlightenment and one-ness. It uses examples such as the building of muscle (using resistance) to evince its points.
The concept is technically similar to the concept of dichotomous human understanding within linguistic anthropology.