Lucky people?

Is it true that the last level of Tianshu Dan Volume needs to be understood by people who are predestined to it?

"I can only read the tadpole inscriptions in the first volume and the contents in the middle volume. As for the last layer of the wordless heavenly book, I haven't understood it so far. Now you should understand what I need your help..."

With the Hell Gate Master saying so, Li Tian's heart cracked.

The last third of Tianshu Dan Volume is the blank part. To tell the truth, Li Tian can't understand it.

But now it's clear that the hell gate owner means to let...