From Franz Bardon and the Elemental Aspect of Character: The black and white mirror represents the mental and psychic character aspects of the self. By prevailing over the more negative character trait qualities and enhancing the more positive qualities, a developing magician can establish a balance of the elements within.
The official website of Lita-Luise Chappell, writer on sex, magic, food, distant lands, and everyday life with articles, poetry, novels, travelogues, rituals, cookbooks, and short-stories.