The explanation of the chapter "song of the rain"

 stanza 1 
the poet writes that it (rain) is sent on earth by the gods. nature welcomes rain to beautify her fields and valleys.

stanza 2 
he says he was once pearls on the crown of queen ishtar but was plucked by the goddess of dawn to embellish the earth. 

stanza 3 
he says that when there is rainfall all things are filled with joy and happiness. 

stanza 4 
he says that the fields and clouds are its lovers because-- it satisfies the need of water in the field , it lessen the heavy burden of the cloud. 

stanza 5 
before rainfall , thunder strike and announces the rains entry. the spotting of a rainbow shows its end. 

stanza 6 
rain has its roots in the sea ( evaporation). whenever it sees a dying field it showers water and rejuvenates flowers and tress 

stanza 7 
the pitter- patter against the window sill is always welcome but only few appreciate it . 

stanza 8 
heat causes evaporation and ultimately rainfall, rainfall however makes the atmosphere cool. 

stanza 9 and 10 
it says it evaporates from the sea, makes fields happy and is the tears of heaven.