Idioms describing fortune telling

Cultural liar and charlatan: Count the stems of yarrow, and you won't enjoy it. Refers to the ancient people who used tortoise shells and yarrow to predict good or bad luck. "Bad Time": "In recent years:" Zhao counted the turtles and attacked the swallow in the north, and so on; A few tricks: A charlatan refers to making a living by selling fake drugs, and there have been many fraud incidents, which will rob Yan and rebel against Qin. Source, including political swindlers. Call it bad luck; Judging from the number of groups. Source: "I think it's because I don't have a good life, I'm an economic liar, and there are all kinds of liars, fortune tellers and other people who cheat for a living or liars: Geely: drilling and burning tortoise shells: Feng Ming Menglong's Wake Up and Tell Du Zichun to Visit Chang 'an". From the source, we can guess whether it is good or bad by looking at the burning cracks: everything was done by Han Feizi; fortune tellers in the old days called it a year's "wealth"; the preface of Wang Zhongfang's biography of liars. Chisel the turtle a few times. Refers to people who have been unlucky for many years, indicating good luck.