This is an example page. This is different from a blog post because it will stay in the same place and will appear in browsing your site (in most themes). Most people start with a "About" page that introduces them to visitors to the site. It might look like something like this:

Good morning! I'm a mechanic who aspires to be an actor, and this is my site. I live in Bordeaux, I have a great dog named Russell, and I love vodka (as well as being surprised by the sudden rain during long walks on the beach at sunset).

… or something like that:

The company 123 Machin Truc was founded in 1971, and has continued to offer the public quality stuff and tricks ever since. Located in Saint-Remy-en-Bouzemont-Saint-Genest-et-Isson, 123 Machin Truc employs 2,000 people, and manufactures all kinds of great gadgets for the Bouzemont community.

As a new WordPress user, you should go to your dashboard to remove this page and create new pages for your content. Have a good time!