Answer:
The stanzas are regular and the rhyme scheme is almost regular. I guess it reinforces the change in seasons. The lines also stay around the same length.
Because the stanzas are regular, it makes every day in the poem seem both incessant and different at the same time. It makes the reader feel quite uncomfortable actually.
This is my own interpretation of the poem, but I hope it helps or inspires you.
 
        
             
        
        
        
audience and message! 
the message behind a story is the overall importance, and the audience is well, how the author gains.
 
        
             
        
        
        
Oxygen then i believe it would be glucose