Okay, that makes sense.
I had a dream that was definitely triggered by something I had seen on TV. I had watched the episode of "Frankie and Grace" where Grace takes off her false eyelashes and extensions and waves them at her boyfriend Nick, and then wipes off all her makeup. She stands before him defiantly, thinking perhaps that he'll run screaming in horror, but he just comes close, embraces her and says, "I'll take it."
In my dream, I was attempting to put lotion on my lips from a small vial, but every time the lotion spilled onto my neck. And I would have to massage it in to my skin and then begin again. It seemed to go on forever.
But other dreams I have don't seem to be triggered by a recent event. Instead, they seem to be me trying to make sense of my story over a period of months, or years.