Ancient Samsara God had a better plan for the Divine Domain that was also the failed World of Samsara. He used the Law Breaking Stone to separate the Divine Domain from his body and started spreading rumours about the World of Samsara. Using the Law Breaking Stone, he also changed a few rules of his world that caused the people reincarnating into this world to keep their special physique and other specialties even after returning to their main body.
Law Breaking Stone was also the reason why he managed to expand his Divine Domain to the level of a world and why lives appeared in this world.
Law Breaking Stone was also the reason why Ancient Samsara God managed to transfer every single life of his Inner World to his Divine Domain and then hide the Inner World into the Divine Domain for the purpose of comprehending 100% Profound Meaning of Death.
Ye Xiao understood many things after seeing every truth unfolding in front of his eyes.