Systems related to the World Dao Lord were relatively rare, such as evolving a small world.
It did not mean truly creating a world below the Seventh Realm. As long as one could forge an ecological environment and form a life-domain field, it counted.
"Blue* Field!"
For instance, the "Free Heaven and Earth Method" you had once cultivated used your own body as heaven and earth, catalyzing a swarm of microorganisms within it to slaughter one another.
Various bodily organs served as kingdoms, different cells as soldiers, growing through war within the human body's greater environment.
Of course, this was a cultivation method.
You could not truly allow one faction of cells within your body to win a sweeping victory. That would mean your body had fallen out of balance—a dead end.
You needed to act as a despicable dealer of the scales, supporting whichever side of cells was weaker and delivering them more nutrients, ultimately allowing the "true self" to grow amid their ceaseless slaughter.
Until, at the final realm, you utterly exterminated those cells' shallow instincts, refined them all, and condensed a Dao Seal.
This system barely brushed against the edge of the authority of "world," because you had fashioned the human body into a small ecological environment and condensed a Dao Seal through it.
Furthermore, although Light Dust Source Soup did not contain Dao Principles where the outside was small and the inside vast, everything you lacked had been made up for within the Immortal Cloud Sky created by Bai He.
Your other Dao Seals did not manifest while you were in the Nine-Nine Boundary Heaven, but within the Boundless Sea of Void, you could unfold the small space you carried with you without relying on the power of a Space Ring.
It was rather interesting. Any