What is the figurative meaning of "A Winter Eden"?

I would say Robert Frost was thinking of the snow and how much more beautifu the world is than bare ground. And the birds that migrate when it is cold and they are alone, now with snow has friends. And being so white and pure, it is a heavenly look and closest to heaven we can get here on earth. And in the snow, conies (rabbits) can come out and play. Eden can mean either gold, dawn, green