138 Openings of Wisdom

138 Openings of Wisdom is considered by leading scholars to be the classic exposition of the kabbalistic system, providing the student with all the concepts and understandings necessary to navigate and find meaning in the Zohar , the teachings of the ARI and other kabbalistic and chassidic literature.

138 Openings of Wisdom was written by the Ramchal as the final step on a ladder of initiation into the kabbalistic wisdom that starts with Derekh HaShem ("The Way of G-d") and Da'as Tevunos ("The Knowing Heart").