"I'll help you look for something suitable," Yan Yu said, dropping the magic treasure carelessly and turning to inspect the bookshelf beside him.
The books on the shelf were a diverse collection, including historical records, geographical annals, anecdotes about notable people, and discussions on the Taoist worldview and philosophy, covering a variety of basic theories.
Yan Yu noticed that this Mysterious Realm seemed to emphasize the influence of "mental fortitude" on cultivation, with many books recording methods for calming the mind and focusing the spirit, expelling inner demons, and how to mend inner flaws to achieve a harmonious state of being.
What a pity, my will is so strong that I have no need for them, and those that require a calm mind, I disdain to learn! As a result, these treasures went unwanted.
After searching through the materials one by one, Yan Yu finally found what appeared to be a record of a spell at the end of a Jade Slip, similar to a family record.