How to display a portion/preview of blog posts on Home page?

Hello,

With the wordpress theme Parament is there a way from the Home page to just show a portion of a blog post?
Such that a small paragraph can be read and if the reader wishes to read more they would then have to click on the blog to load a new page and view the entire post.
I’m not sure what this is called.
I want to be able to have more posts visible from the Home page.

TIA!