In Whitman's " I hear America singing" what binds the workers together

In Whitman's I Hear America Singing, the workers share the same vision about their rights and their wish to find joy in their works. They all have the same objective, to make a strong, united and prosperous country, by sharing joy because of their productivity and their labor.

d.) then bernice winced as marjorie tossed her own hair over her shoulders and began to twist it slowly into two long blond braids until in her cream-colored negligée she looked like a delicate painting of some saxon princess. fascinated, bernice watched the braids grow. heavy and luxurious they were, moving under the supple fingers like restive snakes—and to bernice remained this relic and the curling iron and a to-morrow full of eyes.

i don't see any questions on your profile, currently, but i'd be happy to try and with any problems that you have, so long as i understand the problem myself.