In truth, this is actually an extremely advanced cultivation path.
This realization came to Lu Qing after he comprehended many cultivation methods in the Heavenly Origin Great World.
Thus, he understood that each world's cultivation methods have their unique characteristics.
The cultivation methods of the Small World are not necessarily inferior to those of the Great World.
However, the world's limits restrict the cultivators' realm limits.
Thus, they don't have the opportunity to advance these cultivation methods to higher levels.
This is why the cultivation methods of the Small World are not as good as those of the Great World.
"The foundation of my Sword Dao originates from the Sword Energy Domain comprehended by my master.
The method of domains can actually have a very high limit, and its cultivation concepts are not inferior to the profound inheritance of these Great Worlds.