The Kabbalist Michael Laitman, who was the student and personal assistant to Rabbi Baruch Ashlag from 1979-1991, follows in the footsteps of his rabbi in passing on the wisdom of Kabbalah to the world. his book is based on sources that were passed down by Rabbi Baruch’s father, Rabbi Yehuda Ashlag (Baal HaSulam), the author of ‘‘the Sulam,’’ the commentaries on The Book of Zohar, who continued the ways of the Ari and Rabbi Shimon Bar Yochai and many great Kabbalists throughout the generations before them.