The cultivation of the Thirteenth-Order Void True God Realm began with fully mastering the four rules of Earth, Water, Fire, and Wind.
In other words, after comprehending two rules at the Heavenly God Realm Extreme, if one had the chance to break through to the Void True God Realm, one first had to master the two rules one had yet to comprehend.
Only by gathering all four rules of Earth, Water, Fire, and Wind would one be qualified to comprehend a spatial characteristic.
Thus, within the Profound Sky Domain, some extreme Heavenly God Realm cultivators who had yet to obtain a Thirteenth-Order Low-grade Status Rank Spirit Material would attempt to comprehend all four rules.
It was extremely difficult, and the chance of success was nearly nonexistent, because the soul level of the Heavenly God Realm decided everything.
However, for those extreme Heavenly God Realm cultivators, comprehending even a little more of a third rule would bring a very obvious increase to their combat strength, and would also let them lay a solid foundation for themselves.
In a certain sense, it was breaking the limits of the Heavenly God Realm soul.
Once they had the chance to break through to the Thirteenth-Order Void True God Realm, the speed at which they comprehended the remaining rules of Earth, Water, Fire, and Wind would become extremely fast.
Mastering the four rules of Earth, Water, Fire, and Wind, then comprehending a spatial characteristic. Once a Void True God could fully master the Spatial Characteristic: Emptiness, they would completely pull away from the realms below the Thirteenth-Order.
In other words, when facing a Void True God who had fully mastered the Spatial Characteristic: Emptiness, the number of Heavenly God Realm cultivators would become utterly meaningless. No matter how many Heavenly God Realm cultivators surrounded and