What does a blog do?

Ok I was thinking I want to sell something.

But how do you make it sell?

I could rank a website. But what's the point when you blog and can't build a web page that ranks and gets sales. 

So maybe the issue is that you need to blog in order to build a web page that makes money and allows you to win and learn and grow and laugh that you made it out of one bad and look where you are you finally realized that you had to make money.

I know it's hard and it takes time but don't give up and keep writing and developing and searching and understanding keywords.