The Prolate is the highest rank of ministry in the Sundol religion. They oversee all Chaplains and Acolytes as well as handle all foreign affairs. After the current Prolate passes on, a successor must be chosen. All the Chaplains who are deemed worthy enough must under-go three tests. The first test is the Scorpion Pit, where one at a time they must descend into a pit filled with scorpions. Most who begin the trials die from this first test. The second test is the journey to the Obsidian Flats. They must survive the journey their with only a single canteen of water and no food. It is a journey that takes roughly one month to complete. Once they make it to the Flats they undergo the final test. The final test is unknown to all but the Prolate who has undergone it. It is rumored to be different for each person who enters.
The term Prolate means rounded one, which is what the god Sundol mandated be needed for a good leader.