It's related to the Luciferian view (freemasons) that man's nature is dual (good and evil) battling for supremacy in ourselves. They believe that "good" has substance, but that "evil" also has substance, and is just the reverse side of the same coin.

So you have occultists who take the "right-hand path" using light and goodness to achieve power, and you have the "left-hand path" who use deception and envy to forward their goals. To them, there's no difference and both end up in the same place: enlightenment, where you become "as the gods, knowing good and evil".

All of the lies go back to the beginning of human history.

EDIT to add details: This is where the "Enlightenment Era" terminology comes in. It was a bunch of freemasons who decided that the universe was mechanistic, they all loved math, and thought that rationality should reign supreme over our heart and loins. They used our loins (passions) to overthrow our heart and move our perceptions of what's "true" or "real" from our heart to our brains.