Baruch Shalom HaLevi Ashlag () (also known as the RABASH) (January 22, 1907 – September 13, 1991) was a kabbalist, the firstborn and successor of Yehuda Ashlag also known as Baal Hasulam, the author of "The Sulam" commentary on the Zohar. Among his writings: Shlavey ha Sulam ("Rungs [of] the Ladder"), Dargot ha Sulam ("Steps [of] the Ladder"), Igrot Rabash ("Letters [of the] Rabash"). His life Baruch Shalom ha Levi Ashlag (also known as the "Rabash") was born in Warsaw, Congress Poland, Russian Empire on January 22, 1907. He began his Kabbalah studying with his father's (kabbalist Yehuda Ashlag) selected students at the age of nine, and joined him on his trips to the Rabbi of Porisov and to the Rabbi of Belz. In 1921, at age 13, he immigrated with his family to the Land of Israel, and continued his schooling at the Hasidic institution "Torat Emet". Ashlag was ordained as a rabbi at age 20 by the chief rabbis of Israel at that time, Abraham Isaac Kook, Yosef Chaim Sonnenfeld, and Yaakov Moshe Charlap. He did not want to use the knowledge of Torah he had acquired for a living. For most of his life, he was a simple worker, doing road works, construction works, and low-level clerical work. When Ashlag grew, he became his father's prime disciple. He joined his father (Yehuda Ashlag, author of the Sulam commentary on The Book of Zohar) on his trips, did his father's errands, and provided for his father's every need. He would often study with his father in private, and what he'd heard from his father he wrote in his personal notebook. Thus, thousands of unique notes were accumulated, documenting Yehuda Ashlag's explanations concerning the spiritual work of an individual. (Yehuda Ashlag is considered one of the foremost kabbalists of the 20th century. He is known as Baal HaSulam (Master of the Ladder) for his Sulam (Ladder) commentary on The Book of Zohar. He studied Kabbalah with his father for more than thirty years. When his father, Baal HaSulam, fell ill, he appointed Ashlag to give the lessons to his disciples in his stead. After the death of his father, Ashlag took his father's place as the leader of the Ashlag Hasidim, and dedicated his life to continue his father's unique way, to interpret and expand on his father's writings, and to disseminate Kabbalah among the people. Due to disputes