Final answer:
An unnamed speaker in Wordsworth's poem mourns the life and death of Lucy, a character symbolizing beauty and solitude.
Step-by-step explanation:
The speaker in the poem 'She Dwelt Among the Untrodden Ways' is an unnamed persona created by the poet William Wordsworth, who reflects on the life and death of a girl named Lucy. Lucy is a fictional character often thought to represent the idealized beauty and solitude of nature. Wordsworth's Lucy poems contemplate themes of nature, beauty, love, and loss within a pastoral setting. The speaker mourns Lucy's obscurity in life and her unnoticed death, emphasizing the depth of his personal grief for someone who lived largely unseen by the world.