The url below is to a really good site that will help you to understand the Kabbalah (Qabala,Cabala, etc) from an esoteric aspect. I studied the Kabbalah for a while but I feel it does more justice for an individual to study it yourself to get an understanding of it. It is Judaic in origin and does refer back to the Old Testament.

As I stated the url below gives a lot of information on the Kabbalah and if you wish, I will add several more and more information as well as a list of books that are really great to have and read for the knowledge within them.

http://72.167.108.9/ifdawn/