南柯一夢 (Nán kē yī mèng) (1) lit. a dream of Nanke (2) fig. dreams of grandeur From https://dict.idioms.moe.edu.tw/bookView.jsp?ID=192 Li Gongzuo (李公佐) of the Tang Dynasty once wrote a short story (傳奇小說, novella) titled “The Governor of Nanke (南柯太守傳)”, where legend had it that in the ninth month of the seventh year of the Emperor Dezong‘s…