[Jeru in original Japanese edition]
The space city, the world’s zenith, according to Mbadi, located above Tiphares, as Hugo’s brother had predicted.
See also: Jerusalem and Binhar.
According to Wikipedia (edited):
Keter (Hebrew for crow) also known as Kether, is the topmost of the Sephirot of the Tree of Life in Kabbalah. Since its meaning is crown, it is interpreted as both the topmost of the Sephirot and the regal crown of the Sephirot. It is between Chokmah and Binah (with Chokmah on the right and Binah in the left) and it sits above Tiphereth. It is usually given three paths, to Chokmah, Tiphereth, and Binah.
Keter is so sublime, it is called in the Zohar the most hidden of all hidden things, and is completely incomprehensible to man. It is also described as absolute compassion, and Rabbi Moshe Cordovero describes it as the source of the 13 Supernal Attributes of Mercy.