On the other hand, Adrienne Rich has been known to use trees as a metaphor for human beings: this is a recurrent image in her poetry. What new meanings emerge from the poem if you take its trees to be symbolic of this particular meaning?
If trees have been used as a metaphor for human beings, then the poem would mean that like the trees, humans too want to break free of the boundaries that life puts on them. Modern life with all kinds of physical comfort has also brought a lot of moral downfall.
