Last night I dreamed I was visiting my friend Linda in Philadelphia. Linda has an animal rescue in her apartment, and at any time, she will probably have a dozen animals in that large one room place up on the 6th floor. In my dream, she was living in a ground floor place, much larger, and had a back yard with lots of puppies and kittens. Then I was riding on the subway, aware that things had changed so much I didn't know where I was, and this was dangerous.
I guess the poem put Philadelphia back into my head.