The quantum description of the universe is very different than the classically observed one, or our perceptions in everyday life. This new way of looking at nature has many consequences, both philosophically and practically. The modern technological development of the second half of the last century may be a very good example of the consequences of the discovery of the quantum world. Now we have a bunch of gadgets from cellular phones to long-lasting batteries, from engineered drugs to space missions, from pocket size computers to nanotechnology, a wide range of end-products of the quantum world. Certainly, these will not be the only changes in our life; quantum sciences will eventually affect the way we look at life.

One of the most dramatic potential changes in thought may arise from the discovery of the quantum entanglement of particles. Quantum entanglement can be described as non-classical correlations of different parties. It is very different than the classical description and can be explained by using the following analogy. Imagine an author writes a book of one hundred pages which includes the most precious arts or explains very important facts about the universe depending on one’s point of view. To make it more interesting or more realistic, he distributes each page of the book to one of his servants and asks them to read and understand the rules written in the book. That is, each servant has access only to one page of the book. If we assume the information on the pages is classical, every servant has one hundredth of the total information written in the book and if we let them communicate with each other, they can in principle reconstruct the written information. However, the situation is very strange in the quantum world. If the information in the book is written using entanglement principle of the quantum world, then none of the servants has any definite idea about the partial information on his page. It is as if the pages are empty. All the information about the content of the book is written on correlations of the pages, not physically on each page. So, the servants can have no idea, if they only look at their pages.

Einstein vs. Bohr

To understand this strange feature of quantum entanglement we should review the historical development of the concept. One of the earliest objections came from Einstein, who was one of the developers of quantum theory. Although he explained the photoelectric effect by introducing the concept of quantization of light, he did not believe in some of its consequences. Mainly, he was not sure about the completeness of quantum theory because of its contradictions with common sense and the theory of relativity. The famous 1927 Solvey Con ference was a turning point for debates between Einstein and Niels Bohr, who was also one of the developers of quantum theory and the Copenhagen interpretations of the theory.

Einstein tried to show this incompleteness by proposing different Gedanken (thought) experiments. Each of these questions was answered rigorously by Bohr. However, Einstein was never convinced by Bohr about the completeness of the theory. The last one of these Gedanken experiments was one related to our concept, quantum entanglement. It is called the EPR paradox and takes its name from the authors of the famous paper “Can a quantum mechanical description of physical reality be considered complete?” by Einstein, Podolsky and Rosen in 1935.

Mainly, the paper was about faster-than-light communication between physically separated objects, two particles. If two particles are generated from a source affected by the existence of a conservation law, like the conservation of energy, or linear or angular momentum, the conserved property is carried by the particles independent of their separation. If the conserved quantity is observed by measuring one of the particles, the other particle arranges itself according to the result of this measurement independent of the distance between particles. According to Bohr, this arrangement happens instantaneously at the time of measurement, which conflicts with Einstein’s theory of special relativity that says nothing can travel faster than light. Apparently, the knowledge of the result of the first measurement is carried somehow to the second particle. Bohr’s reply is now called the Copenhagen interpretation of quantum mechanics. He takes this property as a postulate of quantum mechanics by saying that the state of the particles includes all information about them. After this explanation Einstein never replied again.

If we look more closely at the proposed experiment, we can deduce that in reality information is not transferred faster than light because although the measurement result of the second particle is decided by the first measurement, this information is hidden for the second particle. The result of the second measurement makes sense only if the result of the first measurement reaches the second one. Otherwise, the second measurement can be described as a random outcome of possible results. Now it makes sense if we return to the book description. Here our book has only two pages. Each page is given to one servant. If they only look at their pages there is no information, which means that measurement results are random.

However, if the two servants work together and share their measurement results, then the initial information can be reconstructed.

Coins

Einstein’s point of view can be described in the following example. Imagine we have two coins with the usual heads and tails on different sides. Let us assume that there is a conservation law deduced from everyday experiments stating that if we flip these two coins we always have two opposite results; that is, if we get tails from the one that we measured, the other one is heads for sure and vice versa. In the real world, these coins can be identified as electrons, photons or atoms. Heads/tails corresponds to the spin components for electrons, polarization directions for photons or ground/excited states for atoms. Now, imagine these two coins are separated by a large distance.

Einstein says that as soon as separation occurs the result of flipping is decided but this result is hidden from us. One can measure or learn it by performing a measurement or looking at each coin. Moreover, looking at only one coin is enough to determine the measurement result of the other coin, since the results are correlated. Conjecturing that the side of the coin is determined at the time of measurement is against the causality principle of the theory of relativity which says that cause and effect cannot be simultaneous. However, I am of the opinion that reality is closer to what Bohr described. That is, the result of the measurement is decided at the measurement time not at the separation time. Before the measurement, each coin shows both heads and tails at the same time. The information, deduced at the point of measurement when one of the coins is measured, is transferred faster than light, in other words, at infinite speed.

The nature of each coin is also very strange before the measurement because it includes both sides at the same time with equal probabilities, but a classical coin has only one side at one time, either heads or tails. Here the classical coin means the flipped or measured coin. This property of the quantum world is called parallelism. As in the famous case of Schrödinger’s cat, sometimes two extreme situations can happen at the same time. Schrödinger’s cat is a very special cat which is dead and alive at the same time, like a quantum coin. However, when one measures such a cat, that is, observes the cat, its nature collapses to one of the known situations, either a dead cat or a live cat. This measuring process happens systematically due to interactions with its surroundings and is called decoherence.

Although the quantum world is very strange and different than the classical world, it encapsulates more reality than we experience in our everyday life. In the near future, we can expect that ways of looking at the world will be different than the present mechanical, deterministic, and materialistic view because of the unexpected outcomes of the quantum world. If you know how to look, you can already feel this change.

With respect to action and bodily endeavors, we are no more than weak animals or helpless creatures. The realm at our disposal is so limited that our fingers can touch its circumference. Our weakness, impotence, and indolence are so great that even domesticated animals are influenced by them. If any domesticated animal is compared with its undomesticated counterpart, great differences will be observed.

But as passive, recipient beings who need to pray and petition, we are worthy travelers allowed to stay for a while in the guesthouse of this world. We are guests of a Generous One Who has put the treasuries of His infinite Compassion at our disposal, and subjugated to us His peerless works of creative power and His special servants. Also, He has prepared for our use and pleasure such a vast arena of things that its radius is as far as sight or even imagination can reach.

If we rely on our physical and innate abilities, taking the worldly life as our goal and concentrating on its pleasures, we will suffocate within a very narrow circle. Furthermore, our bodily parts, senses, and faculties will bring suit and witness against us in the Hereafter. But if we know that we are guests and so spend our lives within the limits approved by our Generous Host, we will lead a happy and peaceful lives and reach the highest rank. We will be rewarded with an everlasting life of bliss in the Hereafter, and all of our bodily members and faculties will testify in our favor.

Our wonderful faculties have not been given to us so that we can use them in this trivial worldly life; rather, they have been given for our eternal life. We have many more faculties and senses than animals do, but the pleasure we derive from our physical lives is much less than what an animal derives. Every worldly pleasure bears traces of pain, is spoiled with past sorrows and fears of the future, and the pleasure’s ultimate disappearance. Animals, on the other hand, experience pleasure without pain, enjoyment without anxiety, and have no past sorrows or anxiety about the future. They enjoy comfortable lives and praise their Creator.

We have been created in the best pattern. If we concentrate on this worldly life, we are far lower than a sparrow, although we have far more developed faculties than any animal. In another treatise, I explained this fact in the form of a parable, as follows:

A man gives his servant 10 gold coins and tells him to have a suit made for himself out of a certain cloth. He gives another servant 1,000 gold coins and sends him to the market with a shopping list. The former buys an excellent suit of the finest cloth. The latter acts foolishly. He neither notices how much money he was given nor does he read the shopping list. Thinking that he should imitate his friend, he goes to a shop and asks for a suit. The dishonest shopkeeper gives him a suit of the very worst-quality cloth. The unfortunate servant returns to his master and receives a severe reprimand and a terrible punishment. Anyone can see that the 1,000 gold coins were not given for a suit, but for a very important transaction.

In the same way, our spiritual faculties, feelings, and senses are much more developed than those of animals. For example, we can see all degrees of beauty, taste all varieties of a food item’s particular tastes, penetrate the many details of visible realities, yearn for all ranks of perfection, and so on. Animals, on the other hand, with the exception of a particular faculty that reaches a high state of development according to its particular duty, can realize only a very slight development, if any.

Our senses and feelings, which have developed a great deal owing to our mind and intellect, require that we have many faculties. Our many needs have caused us to evolve different types of feelings, and to become very sensitive to many things. Also, due to our comprehensive nature, we have been given desires turned to several aims and objectives. Our senses and faculties have greatly expanded because of the diversity of our essential duties. Furthermore, since we are inclined and able to worship, we have the potential to realize all kinds of perfection.

Obviously, such rich faculties and abundant potentialities cannot have been given to us for an insignificant, temporary, worldly life. They were given to us because our essential duty is to perceive our obligations, which are directed to endless aims; to affirm our impotence, poverty, and insufficiency via worship; to study by our far-reaching sight and penetrating understanding; to bear witness to creation’s glorification of God; to discern and be grateful for the All-Merciful One’s aid sent in the form of bounties; and to gaze, reflect upon, and draw warning from the miracles of His Power as manifested in creation.

O world-worshipping one charmed by the worldly life and ignorant of the meaning of your nature as the best pattern of creation! Once I saw the true nature of this worldly life in a dream, as follows:

I was on a long journey. My God had caused me to set out on this journey. He gradually gave me some of the 60 gold coins he had allotted to me. This went on for some time. After a while, I arrived at an inn that provided some entertainment. I gambled away 10 gold coins in one night of entertainment and frivolity. When it was morning, I had no money for the provisions I would need at my destination. All I had left was pain, sorrow, and regret left by sin and illicit pleasure.

While in this wretched state, a man said to me: “You have lost everything, and so deserve to be punished. Moreover, you will go on to your destination with no money. But if you use your mind, the door of repentance is open. When you receive the rest of the money, keep half in reserve and use it to buy what you will need at your destination.”

My selfhood did not agree, so the man said: “Save a third of it then.” Still, my selfhood balked. The man insisted: “Then a quarter.” I realized that my selfhood would be unable to abandon its addictions, so the man turned away in some indignation and disappeared.

At just this moment, I found myself on a train traveling at a high speed through a tunnel. I was alarmed, but there was no escape. To my surprise, I saw very attractive flowers and tasty-looking fruits alongside the track, hanging out from the sides of the tunnel. I foolishly attempted to pick some of them. But all around them were thorns that, because of the train’s speed, tore at my hands and made them bleed. What I tried to hold on to them, they slipped from my grasp.

Suddenly an attendant came beside me and said: “Give me 5 cents, and in return I’ll give you as many flowers and fruits as you want. Otherwise, with your hands all cut up, you will lose a 100 instead of 5. Besides, there is a punishment for picking them without permission.”

Depressed by this condition, I looked out the window to see when the tunnel would end. But there was no end in sight. The tunnel’s walls had many openings into which passengers were being thrown. Suddenly I caught sight of an opening just opposite me with a gravestone on either side. When I peered out, I made out my name, Said, written in capital letters on the gravestones. I gave a cry of bewilderment and repentance.

Unexpectedly, I heard the voice of the man who had advised me at the inn, asking : “Have you come to your senses?” I replied: “Yes, but I am in despair and there is nothing I can do.” He told me to repent, and trust in God, to which I replied that I would. Then I woke up and I found myself transformed into the New Said; the Old Said had gone away.

I will now interpret some aspects of this dream: The journey is your life, a journey from the incorporeal world of eternity, passing through the stages of mother’s womb, youth, old age, the grave, the intermediate world, Resurrection, and the Bridge. The 60 gold coins are the 60 years of an average lifetime.

I was 45 when I had this dream. Only God knows when I will die. A sincere student of the Qur’an showed me the true path so that I might spend half of the remaining 15 years for the Hereafter. The inn, as I came to understand, was Istanbul. The train represents time, and each railroad car is a year. The tunnel is the worldly life. The thorny flowers and fruits are illicit pleasures and forbidden amusements that make the heart bleed with the idea of separation at the very moment you reach for them. The disappearance of pleasure increases sorrow, and besides, being unlawful, cause one to suffer punishment.

The attendant on the train had said:

“Give me 5 cents, and in return, I will give you as many flowers and fruits as you wish.” This means that the permissible tastes and pleasures, obtained in lawful ways, are enough for ones satisfaction. There is no need to pursue illicit ways.

You can interpret the remaining details for yourself.

Adopted from Bediuzzaman’s Twenty-third Word, Second Chapter