This is an example page. It is different from posts because it always stays in the same place and (for most themes) appears in the site navigation. Most start with an imprint, privacy policy or an “About us” page to introduce themselves to potential visitors to the site. There could be, for example:

I work in the courier service during the day, at night I devote myself to acting, and this is my website, I live in a big city, have a great dog and I like drinks with umbrella (but not in the rain without umbrella)
…. or something like this:

Founded in 1971, XYZ has been serving the public with high quality products since its establishment in a small city that employs more than 2,000 people and supports city dwellers in many ways.