The weasels represent freedom. The weasel has no responsibility like the humans. they are free. He says weasels live a life of necessity but humans have a choice.
The poet says it was thin, curved like a lizard, 'small and pointed like a lizard' and then she also compares the weasel to a person she met in the woods.
The poet shows the difference between man and nature saying the animals and nature observe every details around it but man is caught in his world where he lives. .