Complex sentence: The poem expresses feelings of solitude and confinement, and there is a difference between the worlds inside and outside of the cottage, and there is a focus on the relationship of the private to the public spheres.
Split into simpler sentences: The poem expresses desire for solitude and confinement and emphasises the difference between the worlds within and outside of the cottage. Overall, there is focus on the relationship of the private to the public spheres.