What does it means to dream Yesterday?

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Yesterday – Dreaming about the previous day is common and, in fact, is the whole purpose of dreaming at all. Scientists have long proven that dreams are simply a reflection of our previous day brought together in a very symbolic way to bring clarity to all of the events that we recently had. When studying encephalographs of people all day long as they complete various tasks, scientists can track on paper every spike in neural activity and look at it. When the same person goes to sleep, the scientists se the exact same complex patterns start and intersect into unique graphs that are almost identical to the ones produced when the person was awake.