Write down the theme of the following poem (Not more than fifty words): I wandered lonely as a cloud That floats on high o'er vales and hills, When all at once I saw a crowd, A host of golden daffodils; Beside the lake, beneath the trees, Fluttering and dancing in the breeze. Continuous as the stars that shine And twinkle on the milky way Along the margin of a bay. Ten thousand saw I at a glance, Tossing their heads in sprightly dance.