The "strong man" in the story refers to Li Bai, and the "imperial concubine" refers to Yang Guifei. This story tells that in the court of Emperor Xuanzong of the Tang Dynasty, Li Bai was drunk and ignored etiquette and royal rules. He asked Gao Lishi to take off his boots and asked Yang Guifei to grind ink for him.
This story reflects the luxury of court life in Tang Dynasty and the publicity of Li Bai's personal character. At the same time, it also reveals Li Bai's disdain for power and status, as well as his distinctive personality and talent.
The above information is for reference only. If you need more information about Li Bai, it is recommended to consult relevant historical materials.