Spire of Miatistina
From Halopedia, the Halo wiki
The Spire of Miatistina was constructed by the Sangheili during The Former Age, prior to the foundation of the Covenant empire in 852 BCE. The Spire has long-served as a clandestine reminder of the Sangheili's pre-Covenant faith, with the site fabled to serve as a confluence point between the wills of the ancient gods and the celestial namesakes Urs, Fied and Joori. The original Writ of Union was at some point amended with a clause to allow select orthodox lacuna monks and Ascetic priests to observe their ancient practices in the Spire of Miatistina, though these agreements were rarely honoured.
The fall of the Covenant has seen the Spire given a new purpose and resurgence of activity, as the once-reduced orders which called the temple home have begun to re-emerge and revive their traditions.