We now move to the world where all of the action takes place.
Corpuscles have a variety of different functions.
Red blood cells carry oxygen to different parts of the body, while white blood cells help the body's immune system. People also have diverse functions. Thus, people are the life force of Ulysses. Without them, the text loses all meaning. Corpuscles derive their meaning for existence from the specific functions they perform, creating a hierarchy of functionality, in which certain cells are more essential for well-being than others.