Shelley treats Liberty as a force even stronger than the most violent aspects of nature. The opening lines describe mountains echoing their thunder, oceans waking one another in storm, and a typhoon’s clarion call, building a mood of immense, explosive energy. But Liberty’s gaze is keener than lightning, her step swifter than an earthquake’s tramp; she deafens the ocean and blinds volcanoes. The sun itself seems like a dim, damp marsh-fire compared to her light. The final stanza shifts from this awe-inspiring contrast to a vision of Liberty spreading across the world—from spirit to spirit, nation to nation, city to hamlet. In her advancing dawn, tyrants and slaves become nothing but shadows. The speaker feels fierce hope and reverence, creating a mood that sweeps from sublime terror into exhilarating liberation.
Liberty — Summary
The fiery mountains answer each other; Their thunderings are echoed from zone to zone; The tempestuous oceans awake one another, And the ice-rocks are shaken round Winter's throne, When the clarion of the Typhoon is blown.
From a single cloud the lightening flashes, Whilst a thousand isles are illumined around, Earthquake is trampling one city to ashes, An hundred are shuddering and tottering; the sound Is bellowing underground.
But keener thy gaze than the lightening's glare, And swifter thy step than the earthquake's tramp; Thou deafenest the rage of the ocean; thy stare Makes blind the volcanoes; the sun's bright lamp To thine is a fen-fire damp.
From billow and mountain and exhalation The sunlight is darted through vapour and blast; From spirit to spirit, from nation to nation, From city to hamlet thy dawning is cast,-- And tyrants and slaves are like shadows of night In the van of the morning light.