What is an analysis of William Wordsworth's poem "Daffodils"?

This poem, written by William Wordsworth in 1807, is formally known as "I Wandered Lonely as a Cloud." It is a four-stanza poem with six lines in each stanza; this is called a sestet. The rhyme scheme is ababcc, with end rhymes. The meter of the poem is iambic tetrameter, meaning that each lines has four iambs. An iamb consists of one unstressed syllable followed by a stressed one.
In the poem's first stanza, the speaker is out for a rambling walk, when he happens upon a vast field of daffodils beside a lake and under a tree. The wind is moving them around in a way he describes as "fluttering and dancing."
In the second stanza, the speaker emphasizes the vastness of the field of flowers by comparing them to the span of the Milky Way; he estimates their number to be ten thousand, and he again marvels at how they dance in the breeze along the lakeshore.
In the third stanza, the speaker continues to gaze upon the flowers, and he reckons that the waves on the lake are not nearly as captivating as the movement of the flowers. He can't help but be elated by their beauty and sprightliness. He begins to relate that the sight of them has been quite special.
In the final stanza, the speaker reflects on how the sight of the dancing daffodils has stayed with him. He often finds that the image of them comes to mind when he is alone with his thoughts, and when it does, it brings him joy.
A general theme of this image-laden poem, then, is that nature offers beauty and joy to those who take the time to appreciate it.

I assume here you mean William Wordsworth and his poem "I Wandered Lonely as a Cloud," popularly known as "Daffodils." The poem describes the poet's solitary wandering through the countryside, whereupon he encounters a whole field of daffodils: "Ten thousand saw I at a glance, tossing their heads in sprightly dance." The flowers lift his spirit and the last stanza of the poem shows how his recall of this experience is deeply pleasant and brings fond memories, soothing his "vacant or pensive mood."
Wordsworth was a Romantic. The Romantics believed in the power of nature to inspire and move. Many of his poems reflect on this fact and are, in effect, odes to nature. This is only the most famous.
The daffodil is also symbolic, for its Latin name is Narcissus. In Greek mythology Narcissus pulls away from the world and becomes enraptured by his own image, essentially losing his will to live. To be narcissistic means to become self-obsessed. In the poem, the daffodils have the opposite effect, taking the poet away from self-obsession and making him feel less lonely, through his connection to nature.