This is an example of a static page, such as a contact us form or an about us page, or maybe a list of services and such. Unlike Blog posts, pages do not get archived. Pages can be edited at any time, just like a post can be. You could edit this to put information about yourself or your site so readers know where you are coming from. You can create as many pages like this one or sub-pages as you like and manage all of your content inside of WordPress.