This entry explains idiom “Cang hai yi su” from Su Shi’s Former Red Cliff Ode. It likens entities to a grain in the vast sea, conveying insignificance against the cosmos and inspiring philosophical humility.
This entry explains idiom “Cang hai sang tian” from Ge Hong’s Biographies of Immortals. Drawing on Maggu’s tale, it depicts immense long‑term transformations, stressing impermanence of circumstances and worldly fortunes.