The fusion between the pillar rules and the basic rules.
The fusion among the pillar rules themselves.
The strongest among the fusion rules, the fusion of pillar rules with other pillar rules, requires only one to be understood to rank as 'Grade A' among the tenth rank.
Whereas the fusion of pillar rules with basic rules ranks at least as 'Grade C' among the tenth rank, and some can reach the 'Grade B' tenth rank.
Normally, it is impossible for a ninth-rank powerhouse to comprehend fusion rules.
Due to insufficient realm, the main cultivation direction for ninth-rank life forms is to continuously open up spatial layers, making their inner worlds increasingly substantial.
This is the foundation for breaking through to the tenth rank.
However, Lin Yuan's foundation was incredibly profound; although he was at the ninth rank, his understanding of the Space Rules and many basic rules was in no way inferior to those of the tenth-rank powerhouses.
