Atziluth or Atzilut is the highest of four worlds in which exists the Kabbalistic Tree of Life. It is also known as "near to God." Beri'ah follows it. It is known as the World of Emanations, or the World of Causes. In the Kabbalah, each of the Sephiroth in this world is associated with a name of God, and it is associated with the suit of wands in the tarot.

The Tetragrammaton, or the Tetragram, is the four-letter Hebrew theonym יהוה‎, the name of God in the Hebrew Bible. The four letters, written and read from right to left, are yodh, he, waw, and he. The name may be derived from a verb that means "to be", "to exist", "to cause to become", or "to come to pass". While there is no consensus about the structure and etymology of the name, the form Yahweh is now accepted almost universally, though the vocalization Jehovah continues to have wide usage.