This sentence came from Mr. Jin Yong's martial arts novel " The Eight Dragons ". It was a famous sentence that described the character of the protagonist, Duan Yu. The literal meaning of this sentence is: You don't deliberately walk through the hall but you want to be accompanied by loneliness to trigger a torrent of impulse and strength. Among them," unintentionally passing through the hall " referred to Duan Yu himself not wanting to pass through the hall, but a natural performance;" lonely and arrogant " referred to his personality trait of thinking alone and not interacting with others too much, but it also brought some unexpected power and influence. This sentence expressed the character's unique personality and behavior, which left a deep impression on people.