You may be hanging out with your friends, listening to the rest of your group's conversation, watching a movie or simply being there, when suddenly it all seems like something is happening all over again. Ever experienced jumping out of your chair, wide-eyed becausr what happened, what you're seeinh, hearing, and where you are at that moment had been exactly the same things you've seen and heard once before, maybe many times even? And then you overcome a sense of familiarity. You sit down, and stop and feel kind of strange?
I'm sure many, if not all of us, had our share of deja vu. And had we not been very sure ehat we'd been there and actually done that. French psychic researcher, Emile Boirac (1851-1917) wrote that the experience of deja vu is usually accompanied by a compelling sense of familiarity, and also a sense of eeriness, strangeness, weirdness or what Sigmund Freud calls "the uncanny." The previous experience is most frequently attributed to a dream, although in some cases there is a firm sense that the experience has genuinely happened in the past, thus, the term deja vu in French, means already seen, and describes the experience of feeling that one has witnessed or experienced a new situation previously.
Did you know that 70% of people claims to have experienced deja vu at least once in their lives? The stranger suddenly turns out to be someone you remember to have met in the past. The bend in on road almost seem as if you've walked on it someone before. One situation suddenly caught you open-mouthed because somehow, something like this already happened. It's all that, and more, and usually, we don't need the details because for some reason, we strongly feel a strange kind of familiarity towards this person, this place, this situation, at the same time knowing, that it's actually the first time.
The experience of deja vu seems so commonthat sometimes, we don't need to ask what's really causing it. Well, here are some possible reasons behind all that feeling of familiarity:
Another possible explanation for the phenomenon of deja vu is the occurence of "cryptomnesia" which is where information learned is forgotten but nevertheless stored in the brain, and similar occurences invoke the contained knowlegde, leading to a feeling of familiarity because of the situation, event of vocal content, known as "deja vu."
There could be more reasons and explanations for experienceing deja vu. The mind is a powerful engine that creates all kinds of experiences, and which very few people investigate and try to understand. The human mind sometimes works in mysteries that people don't really want to bother unlocking.
Resources: http://www.successconsciousness.com/deja-vu.htm
https://www.wikipedia.com
