In the world of duality - If there is a light side then to understand it - there must be a dark side. What we in the physical world think of as good or bad, love or hate, etc. May not be any such thing - We have a mouth to inhale things and an anus to exhale them. One is not any better or worse than the other - Even what we think of as bad or evil, may not be so in the world of the senseless.

All has it's duty or function - The sewer cleaner is no more or less than the professor - We continueously give thing titles or names - When we name anything, that title or name becomes the enslaver of our world.