Simo Parpola in the context of "Tree of life (Kabbalah)"

The tree of life (Hebrew: עֵץ חַיִּים, romanized: ʿēṣ ḥayyim or no: אִילָן‎, romanized: ʾilān, lit. 'tree') is a diagram used in Rabbinical Judaism in kabbalah and other mystical traditions derived from it. It is usually referred to as the "kabbalistic tree of life" to distinguish it from the tree of life that appears alongside the tree of the knowledge of good and evil in the Genesis creation narrative as well as the archetypal tree of life found in many cultures.

Simo Parpola asserted that the concept of a tree of life with different spheres encompassing aspects of reality traces its origins back to the Neo-Assyrian Empire in the ninth century BCE. The Assyrians assigned moral values and specific numbers to Mesopotamian deities similar to those used in Kabbalah and claims that the state tied these to sacred tree images as a model of the king parallel to the idea of Adam Kadmon. However, J. H. Chajes states that the ilan should be regarded as primarily indebted to the Porphyrian tree and maps of the celestial spheres rather than to any speculative ancient sources, Assyrian or otherwise.