Li Yao came to understand only after Yuan Manqiu's explanation.
The Refiners' Registration Examination was one of the most difficult qualification tests amongst all professions. Many prestigious academic authorities would be invited every year to be examiners, not to mention that a tremendous amount of heaven and earth treasures would be consumed during the exam.
If any Tom, Dick, or Harry could take the exam, while the wasted time of a Master Refiner could be considered as nothing significant and the squandering of heaven and earth treasures could also be considered as nothing, but if in a one in a million chance, a refining accident which leads to a spiritual energy explosion took place, then how could that be written off?
So for someone to register for the exam, there were certain requirements such as work experience, assurance from the sect, university recommendation, and so forth.