Kabbalah (Hebrew: קַבָּלָה, “received” or “tradition”) is a body of esoteric Jewish teaching concerned with the nature of the divine, the structure of creation, and the relationship between God and the universe. It encompasses textual traditions, meditative and ritual practices, and theological speculation that developed primarily within rabbinic Judaism from roughly the 12th century onward, though its proponents trace its origins to earlier periods, including the biblical and Talmudic eras. The term “Kabbalah” itself is contested in scope: some restrict it to the medieval and early modern theosophical traditions centered on the Sefirot, while others apply it more broadly to mystical and esoteric currents throughout Jewish history. Within contemporary Judaism, the status of Kabbalah-whether viewed as a core component of Jewish theology, a peripheral mystical tradition, or, by some, as outside the mainstream of normative practice-remains debated; see kabbalah-status-in-judaism-debate. A related but distinct tradition adapting kabbalistic concepts outside Jewish religious frameworks developed in the Renaissance and later esoteric Western thought; see christian-kabbalah.
Kabbalistic literature is extensive and historically layered. Its foundational texts include the Sefer Yetzirah (Book of Formation), of uncertain and disputed date, and the Zohar, a corpus of mystical commentary that emerged in 13th-century Spain and is traditionally attributed to the 2nd-century sage Shimon bar Yochai, though most modern scholars attribute its primary authorship to Moses de León. Central to theosophical Kabbalah is the doctrine of the Sefirot, ten emanations or attributes through which the infinite (Ein Sof) is said to interact with the finite world. Later developments include Lurianic Kabbalah, formulated by Isaac Luria in 16th-century Safed, which introduced concepts such as tzimtzum (divine contraction), shevirah (the shattering of vessels), and tikkun (cosmic repair). Kabbalistic cosmology is often organized according to a schema of four worlds; see Four Worlds (Kabbalah).
Kabbalah has historically been transmitted with restrictions on study, traditionally limited to married men of a certain age and scholarly preparation, though these restrictions have loosened considerably in the modern era, particularly within movements such as Chabad. Kabbalistic ideas have also intersected with broader questions in Jewish thought, including how mystical and rationalist approaches relate to scientific and cosmological questions, as in discussions of Heliocentrism - Jewish Astronomy Viewpoint. The medieval scholar and commentator Nachmanides is among the figures associated with integrating kabbalistic thought into mainstream rabbinic exegesis.
A fuller account of Kabbalah's historical development, including its relationship to earlier Jewish mysticism (such as Merkavah and Hekhalot literature) and its transmission across medieval Spain, Provence, and Safed, appears at Kabbalah - History.