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Kabbalah, a Jewish mystical tradition, was the foundation of Sabbatai Zevi's teachings. Kabbalah delves into the hidden dimensions of the Torah and seeks to understand the nature of God, creation, and the soul. Zevi, a 17th-century rabbi, claimed to be the Messiah and used Kabbalistic ideas to support his messianic mission. He attracted a large following and sparked a messianic movement that had a profound impact on Jewish history.