describe the journey of the brook or say 15 lines on the journey of the brook?

And here is the last line. 

DO YOUR OWN HOMEWORK.

Dear Anon,

Sometime before 1880, Sidney Lanier addressed your Q in splendorous fashion in his SONG OF THE CHATTAHOOCHEE, here are the first ten lines:

Out of the hills of Habersham, 

Down the valleys of Hall, 

I hurry amain to reach the plain, 

Run the rapid and leap the fall, 

Split at the rock and together again, 

Accept my bed, or narrow or wide, 

And flee from folly on every side 

With a lover’s pain to attain the plain 

Far from the hills of Habersham, 

Far from the valleys of Hall.