Kether

Kether also known as Keter represents the 1st sphere or crown of the tree of life in the Kabbalah. The Crown refers to things that are above the mind's abilities of comprehension.

Number: One

Titles: The Crown; The Ancient One; The Aged; The Most Holy Ancient One; The Ancient of the Ancient Ones; The Ancient of Days; The Concealed of the Concealed; The Primordial Point; The Smooth Point; The White Head; The Inscrutable Height; The Vast Countenance; The Heavenly Man.

Divine Name: Eheieh (I Am)

Archangel: Metatron

Angelic Order: Hayyoth (The Holy Living Creatures)

Archdemons: Satan, Moloch

Demonic Order: Thamiel (The Two Contenders)

Heavenly Sphere: Primum Mobile

Part of Man: Head

Reference
Wikipedia Keter