What effect does william carlos williams achieve by breaking up the words wheel barrow and rain water and placing them in separate stanzas, and how does this effect contribute to the theme of the poem?

When reading the poems you have the idea that the decision of the author William Carlos Williams of breaking up words and separating stanzas is made in order to force readers to stop at each word and read it as carefully aa possible. Every word has a particular importance in reflecting the theme and  it makes the reader consider the true value of every single word.