For example I could see one video about DBZ or have one memory of Yu-gi-oh appear in my head and suddenly I spend a couple of weeks watching the show's, listening to music or playing the games. For example I remembered the duel in yu-gi-oh where Atem and Yugi had a duel to determine if Atem would be set free ending the show and it's story arc (before GX) and I find myself playing the video games and rewatching parts of the show.