What is the theme of the poem The Solitary Reaper William Wordsworth s - poem The Solitary Reaper is a beautiful celebration of nature music and human emotion The poem describes a moment when the poet hears a young girl singing while working in the fields Her song touches his heart deeply The main theme of the poem is the power of music and its connection to human emotions The girl's song is full of sadness even though the poet cannot understand her language He feels the song could be about sorrowful events from the past or everyday struggles The poet shows how music can express feelings without needing words Another theme is the beauty of nature and simple life The girl is alone in a peaceful valley surrounded by natural beauty Her voice fills the valley making the moment magical The poet compares her singing to the sweetest sounds