What does it mean to steal a beam and replace it with a pillar? Idiom origins and detailed word explanations

Phonetic 1 style ㄊㄡㄌㄧㄤˊ ㄏㄨㄢˋ ㄓㄨˋ Chinese Pinyin tōu liáng huàn zhù Synonyms steal the beam and change the column draw the beam and change the column change the beam and change the column Source Qing·Cao Xueqin's "A Dream of Red Mansions" Chapter 97 : "Sister Feng came up with a plan to change the situation. It was not easy for her to go to Xiaoxiang Pavilion. She was unable to fulfill her sisterly love. It is really pitiful." Chapter 91 of "Flowers in the Mirror" by Li Ruzhen of the Qing Dynasty: "I don't He can tell jokes, so he has to make a small order to change the pillars." Guo Moruo's "Collected Readings on Literary and Art Liang Rengong's "Organizational Law of Mozi's New Society": "Even Hu Shi and Liang Ren are very aware of his religion. Circular argumentation is not enough to meet the requirements of our modern people, so we are trying to change the beam and column, and transfer his basic concept to another more beautiful program. "The interpretation is a metaphor for secretly playing tricks and substituting fake ones. Really, replace the good with the bad. To replace a beam with a pillar: a metaphor for secretly causing trouble and substituting falsehood for truth. Change the beam and change the pillars: a metaphor for playing tricks and secretly changing the content or nature of things. Example: He adopted the method of substituting others' scientific research results as his own. Duan Quanfa's "The No. 1 Scholar Moves His Wife": "I think it's just a matter of changing the beam. I'll go back and ask my wife to attend the meeting for me." Usage as predicate and attributive; refers to using false to replace true with similar words to steal the sky and steal the dragon. Turn the phoenix into a phoenix, replace a flower with a tree, and use falsehood to confuse the truth with words to be aboveboard, loyal and honest