The Universal Kabbalah, by Leonora Leet, from Inner Traditions, ISBN 0892811897. An innovative modern Kabbalist develops a scientific model for kabbalistic cosmology derived from the diagram of the Tree of Life and the author's own Sabbath Star diagram. Leet explores three levels of consciousness above the four worlds of classical Kabbalah, and reveals the mathematical code of the laws of all cosmic manifestation. "Makes available at great depth material that up to now was locked up in Hebrew texts. A seminal book for serious study that will become a classic text." - Rabbi Zalman M. Schachter-Shalomi.