What is the meaning of climbing ash in a dream of red mansions?

A Dream of Red Mansions refers to the improper sexual relationship between father-in-law and daughter-in-law. "Climbing ash", also known as "picking up ash", refers to climbing on the ash or rummaging with tools. In ancient times, it refers to the improper sexual relationship between father-in-law and daughter-in-law. The word "climbing ash" comes from Jiao Da in A Dream of Red Mansions. "Jiao Dazui scolded 1 ... stealing chickens and beating dogs at home every day, climbing ashes in the brother-in-law's family." Jiao cursed "climbing the ashes", referring to the incest of Jia Zhen, the father-in-law of Ningfu, and Qin Keqing, the daughter-in-law of Jia Rong, his son. Jia Zhen is Jia Rong's father and Qin Keqing is Jia Rong's daughter-in-law. This is a typical incestuous relationship between father-in-law and daughter-in-law, as the saying goes. A Dream of Red Mansions, originally named "The Story of the Stone", is an ancient Zhang Hui novel in China and one of the four classical novels in China. Based on the rise and fall of the four representative families of Jia, Wang, Shi and Xue at that time, the novel describes the lives of some ladies with the love and marriage tragedy among feudal nobles Jia Baoyu, Lin Daiyu and Xue Baochai as the main line, showing the true beauty of human nature and tragedy. It is an epic that shows the beauty of women and the beauty of ancient China society from all angles.