Granny Liu visits the Rongguo Mansion on two occasions during the novel with her young grandson Ban'er.
Each time, she also takes home many valuable gifts of clothing, money, food, family remedies, and livestock.
In Cheng-Gao ending of the novel, Granny Liu visits Wang Xifeng before she dies and saves Qiaojie from concubinage.
The expression roughly translating to "Granny Liu visits the Grand View Gardens" (simplified Chinese: 刘姥姥进大观园; traditional Chinese: 劉姥姥進大觀園; pinyin: Liú lǎolao jìn Dàguānyuán) refers to this character, who visits the noble family who plays host to her, but which also makes fun of her openly for her simplicity (Granny Liu is, however, grateful for their generosity.)
The expression is used in modern Chinese to describe someone, usually simple and unsophisticated, who is overwhelmed by new experiences and luxurious surroundings.