Read the stanza below from, "The song of Chattahoochee"
"But oh, not the hills of Habersham,
And oh, not the valleys of Hall
Avail: I am fain for to water the plain.
Downward the voices of Duty call—
Downward, to toil and be mixed with the main,
The dry fields burn, and the mills are to turn,
And a myriad flowers mortally yearn,
And the lordly main from beyond the plain
Calls o’er the hills of Habersham,
Calls through the valleys of Hall."
In 3–5 sentences, explain what you think this stanza means. What is the river trying to communicate to the riverbed plants that are trying to slow the river down? What is the river's purpose?