What Is It Like to Dream About People From Your Past?

I have been dreaming a lot about these people in my past and I wake up and like the first thing I am is like angry and annoyed Yeah, and Frustrated that my brain keeps going there. Talk about What does it mean when we dream about people from our past? And we you know or dream about people that we still want or people that we  have unfinished business with quote-unquote.