The speaker looks at the sky and starts asking a string of "I wonder" questions: do snow, stars, birds, leaves, waves and trees ever get tired of doing what they do? Each part gives a natural thing human feelings, such as exhaustion, boredom, anger and the wish to rest. The stars become like people clinging to a broken thread, wanting to fall. The trees get the harshest treatment, as they are cut, abused and forced to regrow again and again.
Underneath, the speaker seems to be talking about themselves. The poem's tired, weary tone suggests someone who feels stuck in a cycle they didn't choose, and the final lines make this clearer when they ask whether nature ever wishes not to function "as created to, the way people do." The mood is quiet, sad and reflective, with a hint of anger at how people treat the world. The repeated questions never get answered, which leaves the feeling of longing for a break.