Note that if you want quote/scans, you'd have to wait for me later on to provide you with them as i am on phone.
But anyway, let's get into it.
First, to understand the Throne, one must know what happened before its creation AKA First Heaven Era
First Heaven Age
In her age, technology was at its highest point. She and the people under her rule wanted a device capable of binding the universe and ruling over phenomena called time traveling. This project was a failure but the Seat was a byproduct of it. Thus bloodshed appeared, and war came into be. Everyone sough the Throne, though in the end Holder if the Taiji called Nigenron (First Heaven) reached it, unifying all under the very first law. The first Hadou God.
But that's not all, Naraka, lover of First Heaven had vowed to protect this system forever, fusing himself with the Judecca. Becoming what is known as the Observer.
- But there is more, in First/Second/Third era, concept of multiverse never existed. There was only a singular universe with its past, present and future. Its shape was also different, it was not a hyperdimensional, that is until Mercurius was born.
Mercurius/Fourth Heaven Age
God who brought the most changes to the Throne. Now a hyperdimensional object, one that cannot be described by language. Snake took hold of the Seat and rewrote its system. Multidimensional world with infinite universes and infinite possibilities.
This is mostly what you need to know about the nature of the Throne. But why it does exist?
Simple. To
rule over the universe.
Its System allows the Throne Holder to control the universe, without, to put it bluntly
**** it sideways.
The comes the stuff of how hegemony/supremacy takes in when new Hadou wants to take over the Throne which is already occupied.
Or the types of Taikyoku (Not Gudou or Hadou but something specific to Hadou only which determines how their universe works)