What is a short-summary of the section titled, Shadow, in the book, Becoming Animal?

In "Shadow (Depth Ecology I)," the author leads the reader on an imaginary hike through the forest. The trek eventually leads into the shadow of a mountain. Abram believes that shadows are multi-dimensional. Interacting with, or entering another being's shadow, is like participating in their consciousness and life. Indeed, each being possesses and carries her own shadow, forever holding light and dark inside her.