This is a sample page. It differs from an article because it will remain in the same location and be part of your website’s navigation (for most themes). Most will begin with an About page that presents them to potential visitors. The wording could be something along the lines of:

Hi! I am a bike courier by day, attempting to become an actor at night and this is my blog. I live in Copenhagen, have a fantastic dog called King and love Pina Coladas (and getting caught in the rain).

… or something along the lines of:

XYZ Thingummy factory was founded in 1971 and supplies quality thingummies to the public sector ever since. Located in Duckville, with 2,000 employees XYZ donates the coolest stuff to the local community.

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