As an explicative theory, synchronicity has been used mainly in borderline fields like astrology, tarot, I-Ching etc.. Here we will try to find out why and give maybe some new view on this phenomena. The name itself was coined by Carl Jung, a Swiss psychologist, in the 1920s. About that same phenomena later was written by several authors like Arthur Koestler in his excellent book The Roots of Coincidence and even by Swiss theoretical physicist Wolfgang Pauli. Pauli himself was in that time widely connected to synchronicity phenomena (so called Pauli effect) due to his "ability" to cause failure of technical equipment in his presence. One of the more prominent examples of synchronicity is described in Carl Jung's book Synchronicity. This is excerption from the book.

  My example concerns a young woman patient who, in spite of efforts made on both sides, proved to be psychologically inaccessible. The difficulty lay in the fact that she always knew better about everything. Her excellent education had provided her with a weapon ideally suited to this purpose, namely a highly polished Cartesian rationalism with an impeccably “geometrical” idea of reality. After several fruitless attempts to sweeten her rationalism with a somewhat more human understanding, I had to confine myself to the hope that something unexpected and irrational would turn up, something that would burst the intellectual retort into which she had sealed herself. Well, I was sitting opposite her one day, with my back to the window, listening to her flow of rhetoric. She had had an impressive dream the night before, in which someone had given her a golden scarab — a costly piece of jewellery. While she was still telling me this dream, I heard something behind me gently tapping on the window. I turned round and saw that it was a fairly large flying insect that was knocking against the window-pane from outside in the obvious effort to get into the dark room. This seemed to me very strange. I opened the window immediately and caught the insect in the air as it flew in. It was a scarabaeid beetle, or common rose-chafer (Cetonia aurata), whose gold-green colour most nearly resembles that of a golden scarab. I handed the beetle to my patient with the words, "Here is your scarab." This experience punctured the desired hole in her rationalism and broke the ice of her intellectual resistance. The treatment could now be continued with satisfactory results.

   This kind of phenomena further convinced Jung that collective unconscious exists and that it is archetypal in its core. The first thing we can notice about synchronicity is its appearent and sometimes almost uncanny nonlocality. Events that are in no way connected seems to have some strange connection. We already mentioned nonlocality and quantum entanglement as one of the important concepts from quantum physics here. We already mentioned in that article that it is proven that some subatomic particles are able to instantaneously communicate with each other regardless of the distance separating them. The nature of the synchronicity is often if not always very personal and it is expressed through people, events and meetings. That is the reason why it is literaly impossible to quantify it or measure it on any way so it is all natural that it is not and it can hardly be proven scientifically. Jung had a correspondence with notable scientist from that period like Einstein and Pauli and concluded that this phenomena is closely related to relativity theory and quantum mechanics. That were rather fresh theories back than but today we have some new theories that can shed more light on synchronicity, one of them is surely the theory of holographic universe.

Holographic universe

   The godfathers of this theory are physicist David Bohm and neurophysiologist Karl Pribram, who independently reached the conclusion that the universe operates on a holographic model. The author who made this theory widely known is Michael Talbot in his book The Holographic Universe. Probably everybody knows that hologram is 3D image or photograph if you like that sometimes can be so real that is almost unreal. It is made when laser passes through specific interference pattern that looks like a bunch of fuzzy 2D structures. We can say that one holographic interference pattern encodes one specific image we can recognize as a 3d image after laser passes through the pattern. The interesting part is that if we divide that interference pattern on two or more parts, these smaller parts will still encode that same image without any loss. It seems that every part of hologram no matter how small contains all information possesed by the whole. Remarkable quality that immediatelly brings to mind concept "As above, so below". Who knows, maybe the God is just this first hologram while we are all made on his image because we are part of this larger pattern. According to this model David Bohm concludes that solidity of the universe is an illusion and that everything is one giant hologram. It is worth mentioning that this is the same thing that sage Parashara and other ancient scholars from Hindus valley speak, the world is an illusion they call Maya. Holographic method brings the need to change or at least upgrade old scientific point of view. All of sudden we can't just dismantle something and see how parts are functioning in order to understand how the whole is functioning, in this case if we dismantle something we will just get more of the same. Lets see how Bohm explains some concepts of quantum physics like quantum entanglement and quantum nonlocality with the holographic universe theory.

  Imagine a fish swimming in an aquarium. Imagine also that you have never seen a fish or an aquarium before and your only knowledge about them comes from two television cameras' one directed at the aquarium's front and the other at its side. When you look at the two television monitors you might mistakenly assume that the fish on the screens are separate entities. After all, because the cameras are set at different angles, each of the images will be slightly different. But as you continue to watch you will eventually realize there is a relationship between the two fish. When one turns, the other makes a slightly different but corresponding turn. When one faces the front, the other faces the side, and so on. If you are unaware of the full scope of the situation, you might wrongly conclude that the fish are instantaneously communicating with one another, but this is not the case. No communication is taking place because at a deeper level of reality, the reality of the aquarium, the two fish are actually one and the same.

So, there is a deeper level of reality, holographic in its nature that our brain is not trained to see. In this deeper reality these subatomic particles that reacts like one in the quantum entanglement effect is in reality one particle. Nothing is truly separate from anything else, everything is one, again and again we will hear from modern physics same things that are written thousands of years ago.

We already mentioned that there is a strong indication that memory in the brain is also holographic in its nature. That is the field of research where another prominent scientist, Karl Pribram has taken an interest. After years of research he concuded that memory in the brain is not located in some specific group of neurones but is holographic in patterns of electrical signals across all brain. He also postulates that brain itself serves as a lens for decoding this reality and that the mechanism it uses is holographic in nature. We will just add one more interesting guote about experiment in this field to further gain understanding of this holographic mode of functioning. 

  Biologist Paul Pietsch (Indiana University), in the 1960′s, did studies on salamanders in an attempt to disprove the distributed nature of memories (as found in the Holographic model). Pietsch removed the brains of salamanders and while they were in a stupor without their brains (fantastic in and of itself) they returned to their normal behaviour when the brain was returned. Focusing his tests on analyzing the salamanders feeding behaviour, Pietsch decided that if this behaviour (of feeding) was in fact not confined to any certain portion of the brain (instead distributed, like a hologram) then it shouldn’t matter how the brain was positioned in the head; the salamander should return to normal function. So, he set out once again, more focused, to disprove a holographic scenario. First he flip-flopped the brain and returned it to the salamander who quickly returned to its regular behaviour; he then turned it upside down with the same result. Then in a series of 700 operations he sliced, flipped, shuffled, subtracted and even minced the brains and still their behaviour normalized once it (what was left at least) was returned to the salamander! (Note: Accounts and further explanation can be found in Pietsch’s book Shufflebrain.)

   There are much more evidence in that direction like holophonics, research in altered states of consiousness and so on but that is outside of the scope of this article and I leave to the reader to investigate furher if interested. What is impornat to us is repeated signs that all creation is one living organism, interconnected on all levels. Tarot, astrology, I Ching or just use of tea leaf patterns to predict the future or get some sort of insight is only one facet of this holographic interconnectedness.