Question

Behind the apparent simplicity the poem hides a deep meaning. what exactly does the poet convey to the reader

Answer 1

it means that nothing matters from our size and appearance. it matters by our intelligence

Answer 2

The poem is not merely a description of the cycle of the rain. It has deeper meaning. 'Rain' is a thing of beauty of the earth and so is 'song' OR music. The comparison between rain and music and their function making the earth pure and beautiful conveys the eternal role of natural phenomenon art in real life.