Re-runs

Last night I woke up a few times.  During the first sleep period I had what I’d consider a ‘re-run’ of a dream.  Basically just a dream I had a few years ago, replayed for who knows what reason.  It seems kind of odd to have such a specific dream over again, given it was mostly a dialogue heavy emotional dream.  Luckily I had a weird new one later in the night, but overall, it makes me wonder what my brain must be storing up and trying to process at night. I wonder if others go through re-runs like that. I mean I get if you had a re-run of a generic scenario like you are running from a creepy clown or something but to have a dream where you are discussing something with someone seems a bit strange to revisit after the fact.