Shadow

: In art and photography, a "form shadow" is the soft darkness on the side of an object facing away from the light, revealing its mass. A "cast shadow" is the shape thrown onto another surface, defining the relationship between the object and its environment.

A Beginners Guide to Light & Shadow - Part 1 - Will Kemp Art School shadow

In psychology, the concept of the —popularized by Carl Jung—refers to the unconscious parts of our personality that we "disown" because they don't fit our conscious self-image. : In art and photography, a "form shadow"