This story tells us that we should be careful in everything and not be confused by some superficial phenomena, just as we must be serious, careful and not careless in our study, otherwise we will not learn real knowledge. You can't be arrogant and feel great just because you have a little level! You know, there is an old saying: "There is a sky outside, and there is someone outside!" From an early age, I have to cultivate a good moral character of modesty, which shows that Hong Haier is a person who bites the hand that feeds him, and I have learned not to be an arrogant person.

Introduction to Red Haier

Hong Haier, one of the demon king characters in The Journey to the West, a ghost novel in Ming Dynasty, is the son of Princess Niu and Tiefan, nicknamed Baby King, and lives in Huoyun Cave in the dry pine stream of No.1 Mountain.