This poem by William Wordsworth takes London as its subject and is written under Romantic influence. As such, we can find thematic similarities between it and the poems of William Blake. Wordsworth writes about the beauty of London when the elements of nature which once surrounded it can once more come forth: the "majesty" of the city while it sleeps when the industrial "heart" is not beating. Compare this poem, however, to Blake's "London," and we can find Blake describing the other side of this coin: he focuses on the activity in London which makes it ugly and eradicates its quiet beauty. Like Wordsworth, Blake finds beauty and value in nature and quietude, and feels that the industrial activity of London, characterized by child labor and dirt, runs actively counter to that.
In the moment he describes in this poem, Wordsworth is experiencing the Romantic idea of the "sublime," a perfect beauty which transports one beyond the body. Shelley toys with this idea in Frankenstein, too: Victor's journey is ultimately an attempt to achieve the sublime and create something perfectly beautiful. In this, he is borne onwards by an enthusiasm which fills and powers him. Shelley's language in the novel, too, borrows from the Romantic poets: she lavishly describes the natural landscapes through which both Victor and the Creature pass, and uses light, dark, fire and other natural elements to reflect the internal emotions of the characters.