Each person’s shadow is slightly different due to the unique messages they received from their family, school, religious community, and peers. These specific messages shape what you see as acceptable attire, how to speak with others, what’s OK to say and not say, and so forth. There are also certain qualities that are generally held in the shadow for most people in most societies. These include things like anger, aggression, physical violence, sex, masturbation, selfishness, and greed. Basically, think The Seven Deadly Sins from Catholicism
