Black and white.
Light and dark.
Light and shadow.
I derived my magic symbol from the sense of unexplainable change that light and dark holds. I have always been captured by how much the contrast, but even more, the repetition of the two represents continuing. How it is tied to a sort of natural rhythm, continuing, day and night.
Shadow as story... a shadow could be the trace of what is remembered, A hint of something imagined. A reflection of what is. An extension of what is. What seems to be. A sense of reach. Possibility. An illusion. In a series, a sense of time passing.