What does it mean?

Google recommends me these factors. I don't understand what they actually Mention(which issue of my site), Does anybody do?
– It’s important for sites displaying Google ads to offer significant value to the user. As a publisher, you must provide unique and relevant content that gives users a reason to visit your site first.
– Don’t place ads on auto-generated pages or pages with little to no original content.
– Your site should also provide a good user experience through clear navigation and…
What does it mean?

See original post by Zaber Ansary