1. The "World of Nobility." The highest and most abstract of the four Qabalistic worlds or stages of manifestation. Atziluth is the divine world of archetypes. It is attributed to Kether, the element of fire, and the Hebrew letter Yod.
2.The first and highest Kabbalistic world, the divine world of the Archetypes. The domain of Primordial Fire. It corresponds to Kether, Chokmah and Binah.