In the Jewish Kabbalah tradition, Ayn Sof (Ain Sof, Hebrew "boundlessness" or "without end"), also known referred to as Divine Being, is the name for God as he is unknown, or the mysterious and ultimate source of all existence. All other existence flows, or emanates from Ayn Sof. The tree of life Kabbalah (קבלה Reception, Standard Hebrew Qabbala, Tiberian Hebrew Qabbālāh; also written variously as Cabala, Cabalah, Cabbala, Cabbalah, Kabala, Kabalah, Kabbala, Qabala, Qabalah) is a religious philosophical system claiming an insight into divine nature. ...

According to the Zohar, the ten Sefirot (ultimate principles or divine realities) as found in the Adam Kadmon emanate from Ayn Sof. The Zohar (Hebrew זהר Zohar Splendor, radiance) is widely considered the most important work of Kabbalah, Jewish mysticism. ... Sephirah, also Sefirah (Hebrew language סְפִירָה Enumeration); plural Sephiroth or Sefiroth סְפִירוֹת. ... In the religious writings of Kabbalah, Adam Kadmon is a phrase meaning Primordial Man, or Primal Man, comparable to the Anthropos of Gnosticism and Manichaeism. ...

Theories of the relation between Ayn Sof and all other realities and levels of reality were developed by the Jewish mystical thinkers of the middle ages, such as Isaac the Blind and Azriel who were influenced by concepts of Neoplatonism which they modified to conform to their own leanings. Neoplatonism (also Neo-Platonism) is an ancient school of philosophy beginning in the 3rd century A.D. It was based on the teachings of Plato and Platonists; but it interpreted Plato in many new ways, such that Neoplatonism was quite different from what Plato taught, though not many Neoplatonists would...