Question

At home on the hills of Vermont or in the woods of Maine or the Texas ranch comrade of California's comrade of free northwesterners of every hue and cast. I am of every rank and religion - Walt Whitman, song of myself use the passage to answer the question, why did Whitman compose these lines? To point out the vastness of the United States? To display the wide array of social classes of each religion? To comment on the religious differences, he noticed between religions? To celebrate the different regions and people that make up the nation?