Fighting a Primarch (I)
Rank 9, or the Eternal Detachment Rank, just like all the other Ranks in the Law Realm, was divided into three stages, each with unique characteristics.
The stages were the Everlasting Stage, Immortal Will Stage, and Omega Detachment Stage. As their name suggests, they focused on the Omega Law, with the sole purpose of using the fabric of reality, which was the law matrix, to nurture it.
To enter the Everlasting Stage and become a Rank 9 life form using the True Soul Path of Power, you would need to use the power of your Inner Universe to create Prima Chaos, which would then fuse with your Omega Law, granting it the strength to merge into the law matrix.
Once the Omega Law merge into the law matrix was 100% completed, you would reach the Peak Everlasting Stage.