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Updated: October 6, 2026
The only one of his extant works which is philosophical in content is the small treatise "Hegyon ha-Nefesh," Meditation of the Soul. It is a popular work, written with a practical purpose, ethical and homiletic in tone and style.
And yet the most distinctive doctrine of Plotinus and the later Neo-Platonists among the Arabs, the series of emanating hypostases, Intellect, Universal Soul, Nature, Matter, and so on, is wanting in the "Hegyon ha-Nefesh."
To this they owe in a measure their popularity, which, however, cannot be said for Abraham bar Hiyya, whose "Hegyon ha-Nefesh" was not printed until the second half of last century. The "Microcosm" of Ibn Zaddik is the first compendium of science, philosophy and theology in Jewish literature.