This is an example page. It's different from a blog post because it will stay in one place and will show up in your site's navigation (in most themes). Most people start with a about page that introduces them to potential visitors to the site. For example, it could stand:

Hi! I'm a bike bud a day, aspiring actor at night, and this is my site. I live in Los Angeles, have a great dog named Jack, and I love Piña coladas. (And to be caught in the rain.)

... Or something like this:

The company XYZ Dingenot was founded in 1971, and has since then delivered quality dingots to the public. XYZ is located in Gotham City and employs over 2,000 people and makes all sorts of amazing things for the Gotham community.

As a new WordPress user, you should go to your control panel to delete this page and create new pages for your content. Have fun!