Things you should know: Philip Shraga Berg, a former insurance salesman, claimed to be a rabbi and started his own Kabbalah religion called "The Kabbalah Centre". All of Berg's books on Kabbalah are full of terrible translations, censored and edited texts, and horrible commentary. His "explanations" are rejected by all Jewish authorities, Orthodox and non-Orthodox, religious and academic.
Finally, he isn't even accepted as a rabbi or as a Kabbalist by any of the Jewish denominations, and his work is rejected as totally inaccurate by modern-day scholars. Now his sons are writing books using the same phony, non-Kabbalah ideas in order to make a profit. This really insults those who wish to truly learn about this topic. So instead of reading his nonsense, please check out books on this subject by real authorities and good writers:
Read, for instance, "The Jewish Mystical Tradition", by Ben Zion Bokser; "Major Trends in Jewish Mysticism", by Gershom Scholem; "Zohar: Annotated & Explained" by Daniel Chanan Matt and Andrew Harvey
I would also suggest "The Wisdom of The Zohar: An Anthology of Texts", Ed. Isaiah Tishby, and translated from the Hebrew by David Goldstein.
