The shadow is an archetype that consists of the sex and life instincts. The shadow exists as part of the unconscious mind and is composed of repressed ideas, weaknesses, desires, instincts, and shortcomings.
The shadow forms out of our attempts to adapt to cultural norms and expectations. It is this archetype that contains all of the things that are unacceptable not only to society, but also to one's own personal morals and values. It might include things such as envy, greed, prejudice, hate, and aggression.
From The Alien Archetypes Collection
Based on 4 Major Jungian Archetypes