This is a sample page. Unlike a blog post, it stays in one place and appears in your site navigation in most themes. Many people start with a page introducing themselves to potential visitors. It might say something like this:
Hello! I am a bicycle messenger by day, an aspiring actor by night, and this is my website. I live in São Paulo, have a big dog named Rex, and enjoy caipirinhas and getting caught in the rain.
...or something like this:
XYZ Miniatures Company was founded in 1971 and has been providing quality miniatures to the public ever since. Based in Itu, XYZ employs over 2,000 people and does great things for the local community.
As a new WordPress user, you should go to your dashboard to delete this page and create new pages for your content. Have fun!