Nirvana Practitioners are divided into nine stages, while Heavenly Symbol Masters are split into ten seals….
Nirvana stage practitioners have something that they fear just like a fearsome tiger, yet have no choice but to attempt it: Nirvana Tribulation. For Heavenly Symbol Masters, there is something similar that they love and fear at the same time, that is the Wind Lightning Trial.
Mental Energy intrinsically possess the ability to manipulate the heavens. Therefore, after one advances to Heavenly Symbol Master, once one’s Mental Energy reaches a certain level, it will invoke the Wind Lightning Trial.