 The Ancient of Days is the manifestation of the Ancient of Ancients within Creation.It refers to the most primary ("ancient") source of creation in the divine will Keter ("Crown").In 16th-century Lurianic Kabbalah, "Atik Yomin" is systemised as the uppermost "Partzuf" (Divine "Countenance/Configuration") in the rectification of the World of Atzilut ("Emanation") after the "Shattering of the sephirot Vessels".