Isaac ben Abraham

Spanish theosophist

Also known as: Isaac the Blind

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June 29, 2026

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Isaac ben Abraham, also known as Isaac the Blind, was a prominent Spanish theosophist and mystic in the late 12th and early 13th centuries. He was a key figure in the development of Kabbala, a form of Jewish mysticism.1

Theosophy is defined as teachings about God and the world based on mystical insight. Isaac the Blind's teachings, influenced by Neoplatonism, explored the connection between the created world and the divine realm of the sefirot (divine emanations). His work synthesized ideas from the Sefer ha-bahir and the cosmology of the Sefer yetzira, forming a foundational element of Kabbala. His extant works include a commentary on the Sefer yetzira.21

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Judaism
School of Isaac the Blind
Another theosophic tendency in Languedoc developed concurrently with—but independently of—the Sefer ha-bahir. The two movements would take only about 30 years to converge, constituting what may conveniently (though not quite precisely) be called classical Kabbala. The second school flourished in Languedoc during…
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Another theosophic tendency in Languedoc developed concurrently with—but independently of—the Sefer ha-bahir. The two movements would take only about 30 years to converge, constituting what may conveniently (though not quite precisely) be called classical Kabbala. The second school flourished in Languedoc during…
Read More