Theme Horse

I’m sorry, I don’t understand. I have created posts, in the preview they show on blog page, but when I check site they are not there. I’m flying by the seat of my pants. I created a blank page for blog posts. Is that incorrect? Do I need to write the blog directly on the page? Is there perhaps something I haven’t set up correctly? The blog page is set for posts – front for home, and blog for posts. I don’t know what I’m doing wrong.