Read the analysis of a theme from "ode on a grecian urn."one theme in "ode on a grecian urn" is that art is an eternal and unchanging truth. now, read the passage from "ozymandias," another poem from the romantic period. and on the pedestal these words appear: "my name is ozymandias, king of kings: look on my works, ye mighty, and despair! "nothing beside remains. round the decayof that colossal wreck, boundless and barethe lone and level sands stretch far away. while the theme of "ode on a grecian urn" focuses on how art is eternal, the theme of "ozymandias" focuses on how