Truncating Page Text on Front/Home Page

I love this theme! However, I’m wondering if the text under the photos can be truncated to only show maybe “X” amount of lines? If I write something pretty big on a page, the whole thing shows up on the front page. I’d rather they click the link to go to that page and read the information there.

Is this possible? TIA

Len
https://www.lenford.net