One of the things I like most about Remember Me is the dream diary. Does this have anything to do with shadow?

I see our sleep time as a time for our body-soul-spirit to relate in ways unfettered by conscious constructs. Vivid dreaming, creative dreaming, and dream analysis are all wonderful processes wherein our soul speaks to our mind and spirit in ways that allow our conscious, continual becoming. The spoken language here is symbols, devices by which ideas often too complex or highly charged to articulate in ordinary language are transmitted. Developing a personal mythology of dream symbols involves using a body of personal myths to form a system for organizing one's conception of reality and guiding day-to-day behavior. Mary Margaret’s soul was instructing her to examine shadow through her dreams, she did not understand because she never learns the language.
Writing the dream journal in Remember Me was like writing a novel within a novel. I began by establishing symbols that were related to Mary Margaret’s current age and daily events, but also her collective unconscious. I then developed the symbols in her dreams to speak to her of life unfolding – trying always to guide her into becoming through soul. It was one of my favorite parts of writing the book and you may see this device used again sometime in the future! Dreaming, and all it can offer us, is a true joy for me! Thanks for asking.