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Synchronicity
Synchronicity is the name the psychiatrist Carl Gustav Jung gave to "meaningful coincidence": two events with no cause connecting them that nonetheless seem connected by meaning. A person dreams of someone they have not thought about in years and that afternoon a letter arrives from them; a card about endings turns up on the morning a long chapter closes. Jung suggested such coincidences might point to a principle that links events by meaning rather than by cause. It is the explanation most often offered for why tarot — a shuffled deck — can feel as though it speaks to the moment.
Jung's idea
Jung used the word from around 1930 and set it out fully in the essay "Synchronicity: An Acausal Connecting Principle" (1952), published together with an essay by the physicist Wolfgang Pauli, with whom he had discussed the subject for years. He had come to it partly through astrology and through experiments with the I Ching, for whose English translation he wrote a foreword describing the oracle as working by chance arranged around the moment of asking.
His best-known example comes from his own practice. A patient was describing a dream in which she was given a golden scarab when Jung heard tapping at the window and caught a rose-chafer, the nearest local beetle to a scarab. He took the coincidence as the event that broke through her very rational resistance to the therapy.
For Jung, a synchronicity has three features: an inner state (a dream, a thought, a feeling), an outer event that matches it, and the absence of any causal link between them — only the meaning.
Why it is applied to tarot
Tarot is a natural fit for the idea. A shuffle deliberately removes cause from the choice of cards: the querent cannot pick them on purpose. If there is a principle that links events by meaning, a reading gives it room to work. Many tarot writers describe readings this way, and the idea gives a vocabulary for the experience of a card that seems uncannily apt.
Framed honestly
It is worth being clear about the status of the idea. Synchronicity is a hypothesis, not a finding. Jung and Pauli did not get much beyond saying that such coincidences occur and that something might lie behind them, and mainstream science does not recognise any acausal connecting principle. Jung's own attempt at a test — a statistical study of astrological contacts in married couples, reported in the 1952 essay — produced results he himself conceded looked shaped by chance and by the experimenters' expectations.
There are ordinary explanations for meaningful coincidences, too:
- Numbers. Across a lifetime of days, thoughts and events, striking coincidences are bound to happen; we notice the hits and forget the misses.
- Pattern-finding. Minds are built to find meaning, and a richly drawn card offers many possible meanings to find.
- The reader. A reading is also an act of interpretation, and skill and attention shape how apt it feels.
None of this makes a reading less useful. Many readers hold some mix of these views, and many say plainly that they do not know how readings work. A reading can help someone see their situation more clearly without proving that anything arranged the cards — and it does not need to.
In a reading
Readers who think in terms of synchronicity often pay attention to small coincidences around a reading — a card that repeats from yesterday's draw, a number that keeps appearing — and treat them as things to reflect on rather than signs to obey. That is the spirit in which the idea is most helpful: an invitation to notice, not a claim of certainty.