As Qin Huaian sat cross-legged in cultivation, the Fire Origin Pearl before him filled the Small World, barely a hundred li across, with the aura of Fire Origin.
For anyone, it was an ideal place to cultivate the Fire-Attribute Law.
There were several ways for cultivators to comprehend a law.
The most common was to cultivate the law corresponding to an attribute of their spiritual roots.
That was why cultivators with multiple spiritual roots progressed more slowly in the early stages.
But once they reached the Void Refinement Realm, they had more laws to choose from than cultivators with a single spiritual root.
Another common path was to comprehend a law through cultivation methods and techniques.
If a cultivation method was powerful enough, it could lead a cultivator to comprehend a matching law.
Qin Huaian, for instance, had cultivated the Grand Void Dual Polarity Sword Canon and ultimately comprehended the Yin-Yang Laws through it.
But not everyone could comprehend a law this way. It demanded exceptional insight.
A third way was to consume a Dao Fruit, which made it remarkably easy to comprehend the law it contained.
That path was rarer still. A Dao Fruit was not something anyone could obtain at will.
Even a mighty Grand Unity Golden Immortal needed an extraordinary stroke of fortune to acquire one.
A fourth way was to enter an environment where a particular law was exceptionally active. With sufficient talent, a cultivator could comprehend that law of heaven and earth.
The clearest example was the Nine Tribulations Immortal Inquiry Tower, which Qin Huaian had once entered.
Each world within the Nine Tribulations Immortal Inquiry Tower held different laws and Dao principles.
Once someone passed a world's trial, the Dao resonance of its laws grew immensely strong, making those laws of heaven and earth