As Mike Myers character, The Love Guru, would say: Often the only way OUT (of the illusion of the LABEL of "good" or "positive") is IN (to face the unconscious "bad" and "negative" that brews right below the surface).
And as this trailer, to the documentary The Shadow Effect, points out.. most of us are afraid of the dark side of our nature, as it holds pieces of us we're busy denying.