“Finally. The Kabbalah expanded on what will remain its source book, the Sepher Ha Zohar, or Book of Splendour, in the 13th century; it appeared in Spain a little after 1275 and would be considered for several centuries, at least by certain communities, as one of the three fundamental works of the Jewish religion, together with the Bible and the Talmud. This inspired compilation by Moses de Léon, although believed for centuries to be much older, represents the summit of Jewish theosophy, that is, a speculative mysticism applied to the knowledge and the description of the mysterious works of divinity. Never since has the sephirotic tree been the object of such descriptions and such theosophical consideration.”