This Cultivation Method utilized a special Fourth Energy Level energy suited to the genes of Earth people, allowing genes to gradually decompose without complete destruction, and then to recombine at the microscopic level.
Actually, its cultivation difficulty is very low, mostly relying on personal willpower and genetic instincts for the recombination.
The key is...
Once this energy enters the body, it's like sulfuric acid, starting to damage the body at the microscopic level—if it's unbearable, it could even lead to genetic collapse.
So, if one wants to cultivate without injury, three requirements must be met—
First, one must possess strong physical quality.
Secondly, strong willpower eases the control of energy, allowing for faster genetic reorganization.
Finally, experiencing a variety of Fourth Energy Level optimizations in advance, akin to early adaptation, also increases resistance.
If there is deficiency in one aspect, the other aspects must be stronger to compensate.