After reaching the Ninth True World Realm, one also had to constantly strengthen the laws of the Immortal Domain.
Therefore, a Paramount True Immortal still had to find his counterpart in the other Immortal Lands and refine it into True Nature Essence before using it to increase the nomological power of the Immortal Domain.
Simply put, the cultivation method from the Eighth True World Realm expert was based on killing countless "same bodies".
The Harmony Body was not the projection of these Paramount True Immortal or their scattered souls.
They were all independent people with their own thoughts and lives.
The reason why they became "Harmony Bodies" was only because the laws they cultivated were a little special. They were coincidentally the same or similar to a certain Paramount True Immortal.
Actually, this was not much different from killing people and cultivating.
