This is 100% speculation but you might learn what this is about from a past life regression. I don't advise it though unless you feel it is very important. In that case it could be beneficial.
You can try to figure this out yourself by doing some relaxation exercises, get as deeply relaxed as possible, and ask youself what it means. Repeat the question over and over like a mantra. Then when your mind wanders, notice what you were thinking about. You may find in your thoughts a literal or symbolic answer to your question.
More on this technique can be found here:
http://www.geocities.com/chs4o8pt/na...ediumship.html
The web page is about mediumship but the technique can be used for other purposes too.