The separate stanzas force readers to read each word carefully, which emphasizes the alliteration in wheel and water and the consonance in barrow and rain.
After reading the poem, I felt like the reason why author breaks up words and <span>separates stanzas is to force readers to stop and read each word carefully. Every word reflects the theme and if you will be particular to every single one, then you will se that all elements must be considered individually so that a reader can appreciate their true value. Do hope you will agree with me and find this answer helpful! Regards.</span>