This is an example page. It's different from a blog post because it will stay in the same place and will show up in your site navigation (in most themes). Most people start with an "about" page that introduces them to people visiting the site. This could look something like this :

Hello ! I am a mechanic who aspires to become an actor, and this is my website. I live in Bordeaux, I have a super pet dog named Russell, and I like vodka (as well as being surprised by the sudden rain during long walks on the beach at sunset).

...or something like this :

The company 123 Machin Truc was founded in 1971, and has never ceased to offer the public stuff-stuff of quality since then. Located in Saint-Remy-en-Bouzemont-Saint-Genest-et-Isson, 123 Machin Truc employs 2,000 people, and manufactures all kinds of doodads great for the community bouzemontoise.

As a new user or new user of WordPress, you should go on your dashboard to delete this page and create new pages for your content. Have fun !