You enter a room you have never seen, someone says a sentence, and suddenly you are certain you have already lived exactly that moment. The feeling lasts a few seconds, sharp and at the same time elusive. Then it fades, leaving a question: where does it come from? Déjà vu is one of the most common and most mysterious experiences of inner life, and it has given rise to very different interpretations.
A French name
The expression déjà vu, "already seen", was proposed at the end of the nineteenth century by the French researcher Émile Boirac, who studied psychic phenomena. Since then the term has entered almost every language. There are related expressions too, such as déjà vécu ("already lived"), used to describe more intense and prolonged sensations.
The fact that a dedicated word is needed says a lot: this is an experience widespread and peculiar enough to deserve its own name.
What research says
Memory researchers have proposed several hypotheses, none of which settles the question for good. Broadly speaking, déjà vu is linked to a brief misalignment in the processes by which the brain recognises a situation as "familiar". A detail of the scene, perhaps similar to something seen in the past, may trigger the feeling of familiarity without the specific memory being recalled.
This reading explains well why déjà vu is so frequent and so elusive. It does not, however, rule out that the experience also has symbolic value for the person living it.
Symbolic and traditional readings
Over time déjà vu has been interpreted in many ways:
- As the memory of a forgotten dream: the scene was "seen" in a dream and then recognised in waking life. This is one of the most widespread popular explanations.
- As a sign of being "on the right path": in some modern readings, déjà vu indicates a moment in tune with your own journey.
- As a call to attention: an invitation to be fully present in that instant.
- As the echo of a recurring theme: a situation that repeats in your life in different forms.
These interpretations should be taken for what they are: ways of giving meaning to the experience, not proven explanations.
The link with the dream journal
Anyone who keeps a dream journal has an interesting tool for exploring the first hypothesis. When you experience déjà vu, note the place and the scene. Then reread the dreams of the previous weeks: sometimes you find a similar image, a place, a detail. Sometimes you do not.
Even when nothing turns up, the exercise is useful: it trains attention and shows how memory works through fragments and associations.
How to record a déjà vu
| Field | What to write |
|---|---|
| Date and time | The exact moment |
| Place | Where you were |
| Scene | What was happening, who was there |
| Trigger | A phrase, a smell, a light |
| Emotion | Wonder, unease, serenity |
| Life moment | What you were going through at that time |
Rereading your notes months later, you may notice that déjà vu tends to appear in particular periods, for example during changes or times of tiredness. That too is information about you.
An example
Imagine visiting a city for the first time and, turning a corner, having the distinct feeling that you know that square. You can let it pass as a curiosity, or stop for a moment: take in the colours, the sound, the light. Perhaps the square reminds you of a childhood place, perhaps of a dream, perhaps of nothing in particular. Either way, that moment has become more vivid. In this sense déjà vu is a small awakening of attention.
When to pay attention
Occasional déjà vu is a common experience. If, however, it becomes very frequent or comes with other symptoms or unusual sensations, it is wise to talk to a doctor: symbolic reading never replaces a medical assessment.
From the perspective of Studio Esoterico Cornelio, déjà vu is an opportunity to observe the mysterious weave of memory, imagination and present moment that makes up our experience.
In short
- The term déjà vu was proposed at the end of the nineteenth century by the Frenchman Émile Boirac.
- Research links it to a brief misalignment in the processes that recognise familiarity.
- Symbolic readings see it as the memory of a dream, a signal of presence or the echo of recurring themes.
- Recording déjà vu and comparing it with your dream journal helps you observe it methodically.
- If it is very frequent or accompanied by other symptoms, it should be assessed by a doctor.