The question appears to asking about what represents the poem's subject. First, we can imply what our general topic by the thesis. The thesis is usually the first sentence in a story, and is restated in the conclusion.
The first sentence is "I wandered lonely as a cloud." and the rest of the story details the poem's thesis.
This is clearly highlighting the cloud as the subject.
She is praying to a deity to remove all traces of her womanhood so that she can be filled with cruelty and carry out the bloody tasks necessary to bring her husband to power
