When Yu Ci first established Chengqitian, the Shadow Ghost had been greatly stirred by the Void Divine Ability he displayed, saying, "Void Divine Ability is inherently one of the foremost divine abilities. To carve out another heaven and earth is the supreme ability among them." It had spoken excitedly then, but vaguely. Looking at it now, the matter had become clear.
What was a Self-Created World?
In essence, like other divine abilities, it twisted the Heaven and Earth Law System within a certain area for one's own use, causing laws that normally operated as they should to function in a separate manner within that area. It could even derive all manner of new laws from this foundation, yet remain self-sustaining, self-complete, capable of preservation and restoration.
In this sense, the Longevity Domain and even the Void Stepping Domain could be considered variants of "Self-Created World." They simply lacked lasting efficacy. The latter, especially, was an imitation that copied the gourd from the ladle; one had to spend years painstakingly working over the relevant laws through a series of specialized mental arts before achieving it. It was the standard case of knowing that it was so, but not knowing why it was so.
To grasp the essence of a Self-Created World, one inevitably needed at least a basic understanding of Heaven and Earth Laws. Generally speaking, a Calamity Law Grandmaster could already achieve long-term distortion of laws. It merely depended on their fortune whether they could reach the level of "closed, self-consistent, and self-generating." That was the distinction between possessing or lacking the divine ability of a Self-Created World.
But to the Heaven and Earth Law System, this was like a knot growing upon a great tree, severely obstructing the flow of nourishment.
Thus, to carve out one's own void, one