It was composed by romantic poet William Wordsworth on April 15th, 1802, when he was walking with his sister Dorothy around Glencoyne Bay in the Lake District after the death of his brother. It is a poem about the seductive beauty of nature, about loneliness and the power of memory to change our mood. The poem is short, but it is full of literary words, so it is recommended for C1 students. Here you can find a lesson plan for C1 students, a fill-in-the gap task with the key, and a list of links for background information. In the poem, you will find beautiful words like: to wander, to float, o'er (over), a vale, a host, golden, daffodils, to flutter, breeze, to twinkle, the Milky Way, to stretch, never-ending [line], a bay, a glance, to toss [their heads], a sprightly [dance], sparkling [waves], in glee, [to be] gay, jocund [company], to gaze, oft (often), couch, vacant or pensive mood, to flash upon, inward eye, bliss, solitude.
Below you can watch the "Inspirational Poem" published by RedFrost Motivation.
Here you have a direct link to some in-depth comments by PoemAnalyis.com. If you are reading this alone, you can also use the text and the recording in PoemAnalyisis.com to do a "shadowing" pronunciation exercise, that is, to read the poem at the same time as the actor and focus on the pronunciation and rhythm of the English language (you can watch a presentation about "Shadowing" as a learning task by Nuria Company in Charlas Educativas, beginning at 28:51, here)
If you enjoy listening to English poetry, you can try this video by Poet's Corner with 50 Classic Poems read by 12 celebrities like Morgan Freeman, Jodie Foster or Gary Sinise. I particularly recommend it as a lullaby to have a delightful summer siesta.