The law of life and death was the pinnacle of all laws.
Not even the law of space and time could beat the complexity of this law.
The law of life and death was clearly something that mortals shouldn't comprehend in life.
Domain masters could even be said as a 'god' inside their domain, because once they comprehended the law of life and death, they already became Gods.
In the long history of this world, only complete domain masters could leave this world to go to a higher-level world.
Some more talented ones even used their domain as a foundation to create brand new little worlds.
Dimensions out there were fragments of complete worlds, but dimensions could also slowly grow into another complete world.
Even if that world was a small world that people in the cultivation world called 'secret realms'.
