Thank-you so much Alex. I really appreciate your knowledge of Jungian psychology - you see things in my work that I didn't even know was there, and not at all intentionally put in. Quite apt, really, after what you said about Jung's concept of the shadow.
Here's a wikipedia link to Jung's concept of the shadow for anyone who, like me, would like to me more exact about what it is:
http://en.wikipedia.org/wiki/Shadow_(psychology)