This is a sample page. It is different from a blog post, because it will remain in one place and will show up in the navigation panel on your website (for most templates). Most people start with the 'About Me' page’ or 'About us', which introduces them to potential website visitors. It could be something like this:
Hey! I am a bicycle courier by day, an amateur actor at night, and this is my blog. I live in Gdańsk, I have a wonderful dog named Azor and I love piña colada. (And this, when I get caught in the rain.)
…or something more like this:
The XYZ company was founded in 1971 year and since then it has been producing the best quality wrapper on the market. Located in Pacanów, it employs over 2000 people and is a source of pure benefit to the local community.
As a new WordPress user, you should visit your administration panel, to delete this page and create a new one, websites tailored to your needs. Have fun!