Darkness is, in reality, nothing but the lack of light. So, darkness is natural, light is unnatural. Yet, it is light that defines the civilized traits of a species. Primitiveness is natural, being civilized is not, and yet, being civilized is what makes us superior to all other species, because we have developed the civilized faculties of conscience in our brain, overpowering the innate primitiveness, that served us well in the wild.