Man doeth this and doeth that from the good or evil of his heart; but he knows not to what end his sense doth prompt him; for when he strikes he is blind to where the blow shall fall, nor can he count the airy threads that weave the web of circumstance. Good and evil, love and hate, night and day, sweet and bitter, man and woman, heaven above and the earth beneath--all those things are needful, one to the other, and who knows the end of each?
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.
Cleanliness is not next to godliness, it is godliness. When the mind is cleansed of all primordial impurities, then and then only real godliness of actual practical potential begins to manifest.