What is the purpose of this passage?

As an AI language model, I would need the specific passage or topic you are referring to in order to provide detailed information about its purpose. However, generally speaking, the purpose of a passage can vary depending on the context, audience, and author's intention. Passages can be informative, persuasive, descriptive, narrative, or argumentative. They may aim to convey information, entertain, evoke emotions, make an argument, present a story, provide a summary, or give an analysis. To provide a more accurate answer, please provide the specific passage or topic you want information about.