He complained in his twenty-seventh year that he had to work hard to support himself and his family (see end of Tola'at Ya'aḳob). He was an enthusiastic cabalist, noted for thorough mastery of the whole cabalistic lore, the most important points of which he, as far as can be judged now, was the first of his generation to treat systematically. He must be regarded, therefore, as the precursor of Moshe Cordovero and Isaac Luria.
In his twenty-seventh year, he complained about having to work hard to support himself and his family (see end of Tola'at Ya'aḳob). He was an enthusiastic cabalist known for mastering all cabalistic lore. The most significant parts of which he, according to current understanding, was the first in his generation to study systematically. Consequently, he should be regarded as a precursor to Moshe Cordovero and Isaac Luria.