Despite the fact that the beauty of the daffodils dominates the poem, the poets do not present it for its own sake. He actually relates that beauty to his life. In the first lines he, by using a simile in which he compares himself to a floating cloud, precisely describes how deep his loneliness is. Then, in the final lines, he resolutes that the beauty of the daffodils facilitates him a very precious quite time to retrospect his life. After the retrospection he finally manages to expel his sadness out. We can easily understand this phenomenon by realizing that solitude can be used as a good condition to make one’s life retrospection to understand his true self. (Self-understanding is one of the greatest wealth and joy. The world’s history has shown that monks and other holy men always use solitude to get more understanding about life). Considering these facts, we can say that the underlying idea or theme of this poem is that the beauty of the nature is an effective facility for self-retrospection and a suitable remedy for the poet’s sadness.