This is a sample page. It is different from the blog post because it will remain in place and will appear in the site navigation in most themes. Most people start with an About Me page to introduce them to potential visitors to the site. It may contain something like this:

Hi there! I'm a bike messenger by day, aspiring actor by night, and this is my website. I live in Los Angeles, have a great dog named Jack, and I like piña coladas. (And gettin' caught in the rain.)

... or something like that:

The XYZ Doohickey Company was founded in 1971, and has been providing quality doohickeys to the public ever since. Located in Gotham City, XYZ employs over 2,000 people and does all kinds of awesome things for the Gotham community.

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