I'm not sure if it is connected, but our mind often sorts stuff out on weird ways. The way I work with my Ts we don't really make connections at all... We use it as a jumping off point though. So... If you brought this to therapy you could ask the same question as here and while it may be arbitrary, or literal, or metaphoric... The conversation can go to the feelings that brought it up, why you think it might parallel, etc. I think it's just as good as using current events to figure out our feelings and discovering meaning in out experiences. There are some people who use some dreams as literal with parts, or figurative as a direct 1:1 with a different idea and stuff but my Ts do not work that way... We work very "don't force a connection" focused and it opens a lot of doors! Its also frustrating.

I think just what you've written here is good therapy! I have "bad" dreams a lot, they are many times my processing therapy content and lately my T is constantly in them so we discuss the feelings and maybe where it can relate, if at all. If you have lots of nightmares/terrors, they prescribe something to PTSD veterans and now PTSD in general that helps. I have crazy vivid dreams now but I don't wake up screaming!