Teachers always say that to study well, you need to study well and read well, but they don't say that you need to be so immersed in it.
Ling Xiao travels to another world and obtains a universal reference book that requires him to "read, understand" and "practically verify" himself. The way of cultivation is "reading", and it is immersive reading - read "The Classic of Mountains and Seas" to become a breeder, and read "The List of Gods" to become a civil servant.
