So, I am obsessed with metaphors and interpreting things... Which makes me over-analytical in life, but really hepls out with literature. I guess it also makes The Last Unicorn one of my favorite books. It is littered with metaphors and different interpretations. Depending on what is going on in my life I can always find a way to relate it. Usually I'll interpret the Unicorn as myself, often times when she is talking about being in a cage, whether at Mommy Fortuna's or when turned into Lady Amalthea. As Lady Amalthea, she even sings a bit of a ballad that goes;
"I am a king's daughter,
And I grow old within
The prison of my person,
The shackles of my skin.
And I would run away
And beg from door to door-"

Other times, and this is a metaphor that I found this summer, I can compare the Unicorn to God. He is out in the world, and finds His People (the other unicorns, a.k.a. us), are held captive by Hagard and the Bull (a.k.a. Satan and his devils). He turns (or is turned... I haven't quite figured out how Molly Grue and Schmendrick fit into this yet) mortal, as Christ (Lady Amalthea) in order to save His People (the unicorns). The changing of Amalthea back to the Unicorn is symbolic of Christ dying and his ressurection, though I prefer to take it farther and sorta skim the ressurection and go back to His Spiritual existance (I guess is what I would say). By doing this he is able to defeat the Bull (the devils and evil spirits), thus causing the downfall and death of Satan (Haggard) and the release of all His People (the unicorns). Lir fits in as, I guess a disciple/apostle type character. He must stay in his Kingdom and teach the people there. He is left behind my the Unicorn (Christ) so that he may fulfill his duty and do his part of making the world a better place.

I don't know how much sense that made. If you have questions/ideas, just ask me.

I don't know if I've ever seen myself as Molly Grue, though I do love her character. At some point I may have put myself in her place... I don't remember...

Anyway, I have a lot more metaphors and uses for this story in my life, but haven't the clearness of thought at this hour of the night. There may be more to come. Though you are always welcome to start a conversation with me on the subject.