The second obvious element in Shelley's poetry is his love of beauty, not the common beauty of nature or humanity which Wordsworth celebrated, but a strange "supernal" beauty with no "earthly" quality or reality. His best lines leave a vague impression of something beautiful and lovely, but we know not what it is.
Less conspicuous in Shelley's poems are the sense of personal loss or grief which pervades them, and the exquisite melody of certain words which he used for their emotional effect rather than to convey any definite meaning. Like Byron he sang chiefly of his own feelings, his rage or despair, his sorrow or loneliness. He reflected his idea of the origin and motive of lyric poesy in the lines:
Most wretched men
Are cradled into poetry by wrong;
They learn in suffering what they teach in song,—
an idea which Poe adopted in its entirety, and which Heine expressed in a sentimental lyric, telling how from his great grief he made his little songs:
Aus meinen groszen Schmerzen
Mach' ich die kleinen Lieder.
Hardly another English poet uses words so musically as Shelley (witness "The Cloud" and "The Skylark"), and here again his idea of verbal melody was carried to an extreme by Poe, in whose poetry words are used not so much to express ideas as to awaken vague emotions.
[Sidenote: ALASTOR]
All the above-named qualities appear in Alastor (the Spirit of Solitude), which is less interesting as a poem than as a study of Shelley. In this poem we may skip the revolt, which is of no consequence, and follow the poet in his search for a supernally lovely maiden who shall satisfy his love for ideal beauty. To find her he goes, not among human habitations, but to gloomy forests, dizzy cliffs, raging torrents, tempest-blown seashore,—to every place where a maiden in her senses would not be. Such places, terrible or picturesque, are but symbols of the poet's soul in its suffering and loneliness. He does not find his maiden (and herein we read the poet's first confession that he has failed in life, that the world is too strong for him); but he sees the setting moon, and somehow that pale comforter brings him peace with death.
[Sidenote: PROMETHEUS]
In Prometheus Unbound Shelley uses the old myth of the Titan who rebelled against the tyranny of the gods, and who was punished by being chained to a rock. [Footnote: The original tragedy of Prometheus Bound was written by Æschylus, a famous old Greek dramatist. The same poet wrote also Prometheus Unbound, but the latter drama has been lost. Shelley borrowed the idea of his poem from this lost drama.] In this poem Prometheus (man) is represented as being tortured by Jove (law or custom) until he is released by Demogorgon (progress or necessity); whereupon he marries Asia (love or goodness), and stars and moon break out into a happy song of redemption.