The Great Structure served as the system of religious training through which individuals like Nazzar ascended in the Ulizra faith's hierarchy to the position of praefects, or priests.
This system was first established by Ikree, a princess hailing from Nazzri, subsequent to her successful overthrow of her father, Prrit Qabaq, who adhered to the dark side. However, six months following the start of her rule, she met her demise, and her doctrines were progressively twisted, ultimately forming the foundation for a theocratic authoritarian regime.
Around 4000 BBY, the Structure was composed of 14 distinct vens, each connected to a specific religious sect, with a ven representing each month of the Nazzri calendar. Trainees would sequentially master each ven, ultimately achieving the rank of praefects upon the successful completion of the 14th ven.