Artemidorus:

If your dreams are about transformation, then you must pay attention to three main sections. First on the quantity, secondly on the quality, and thirdly, on the outer appearance.
The quantity: It is favorable to dream that something grows from small to big one or grows beyond its natural form, but only if it does not exceed the normal size of a human. (According to ancient idea superhuman size and beauty that comes only to the gods and heroes.)The vision do not announce a physical growth, but the increase of the activities and the financial situation of the dreamer. However, it means the death of him, when he sees a superhuman size of the thing; if you dream a child, that he was  small and had grown, became an adult. This is not good the death is near, somebody is going to die. When the old man dreams that he became a child, it is a bad sign. It means his death. A good sign, however it is for a man – to be a youth, and for the youth to become a boy. Changes for both ages are youthful. It brings happiness when the boy transforms into a young man, a young man into the man, and the man turns himself into an old man. Because each of them become more honorable age. A young man – to an old man, he is not die though, as the boy, but falls ill. A man turns into a boy, he will suffer through reckless business losses.Aptly says the poet’s words: “You must always be young man so her heart will be full of fluttering recklessness.” (Homer: Iliad 3.108) The quality of the transformation behaves and it follows as: a man is transformed into a woman, so that bodes for a poor and a slave. One will be as a breadwinner – a woman, the others need less toiling in his slave labor; because woman job is less tiring. For a rich man, however, it is bad, especially when he is in political life; because usually the women prevail and connect family in the house. Therefore, the vision will exclude you all higher offices. Athletes, it means illness, the women are more tender with nature than the men. A woman is transformed into a man, it doesn’t matter is she married or is she unmarried, she has no children. She will give a birth of a boy, and this way changes the male nature. She has a husband and a son, she will decide her life as a widow; because the man does not need a man, but a woman. This dream experience sets a slave to an even heavier yoke of slavery, a courtesan, however, it brings you the luck. If you dream that someone, man or woman, is made of gold or silver, if they are slaves they will be sold, so that it is worth its weight in silver or gold. A poor person will get rich. The gold and silver that surrounds him, we have to give it to a judge, however,it will be exposed to attacks, because all gold and silver attracts many rogues, each of them will be sick. The vision certainly predicts death, as well, when we see that something has become an ore; If we see the statues made of ore you will get a donation as votive offerings. The same meaning if someone sees his picture or his statue made of bronze on a public square. The transformation in iron predicts unbearable tragedy; However the dreamer is going to survive and reach a great age. The people of iron we call those, which have endured many adversities and difficulties in their life. If you dream that you became made of loam or clay, so the death threatens everyone, except for person who works with the clay or loam and earns for their living. If you dream that you are made of marble, it tells about the dreamer’s wounds and injuries; because without iron tools, no one can be carved in marble. According to this , someone has to adjudge if it is the transformation into another substance. Someone is transformed into an animal, you must proceed from the nature, choose the best interpretation from the the dreams about animals. In my experience there are more promises of happiness that comprise, beauty, noble stature and physical strength, unless they exceed human size. For someone who is dreaming to be unusually beautiful, handsome, or strong, it means the same thing as when you think you are ugly, paralyzed or weak. Everything brings sickness that comes to death, healthy weakness and infirmity. Each change for the better lucky is sign for the rich, even if you turn into a God;
Someone dreamed that he had become the Helios ( the sun personified as a god, father of Phaethon. He is generally represented as a charioteer driving daily from east to west across the sky) and walk into the brilliance of eleven sun rays through the marketplace. He was elected as the Mayor of his town and had died after he had exerted eleven months at this office, because the number of rays was not completed. (The Sun God has twelve rays.)

In general:

We you dream that something transforms in your dream, so this means that the image has a larger significance then a dream symbol. Transformation usually means,that you are surrounded by light, and this requires a special, divine meaning. Such a dream can occur if the dreamer in his life goes through the changes or he lives in a conversion period. Transformation is a phenomenon that can occur when stages of the awareness change. It belongs to the incidence of the light, how it appears on the personality. Does he come to the light and change it. The occurrence of transformations in the dream, suggests that the dreamer has to be aware of his mental power.

Psychologically:

A self-reinforcing effect occurs when the dream work on: If you notice a first change of yourself, could be reinforced conscious perception and possibly more profound changes. You have to turn back again on your dreams to determine these required changes. Our dreams depict each psychological change of the dreamer, only then you have to consider it. Personality – or behavioral changes in everyday life, frequently first we can see them in the dreams as an occurrence of new and previously unknown symbols. For example, typical conversion symbols and recurring symbols previously did not appear and you did not find them in your dreams. The characteristic of transformation symbols include the following images:
– To cross a bridge and any situation where you get to the other side or go to the other land. To enter the new country, confrontation with the unknown place or you found previously unknown room in a house.
– The caterpillar and the butterfly, the sloughing of the snake, or the bird, to see it flying, the image that shows the connection between heaven and earth.
Of course, there are many more conversion symbols. Most of them are listed in four groups of symbols that can be attributed.
1. Reaching the other shore:
Always, when we dream of a place, the new place that we go, is equivalent to an inner change. We leave our old position, which is symbolized by the place where we are in a dream, to move to a new position, which characterizes the inner place, on which we want to move towards. You look exactly to the new place , because it shows you symbolically, where you want to develop. An archetypal image of this situation represents the crossing bridge over the canyon or the wild water, that lets you to get to the other shore. This image is found in the legends and mythology, for example, the Lancelot – a knight of King Arthur’s Round Table – has to cross the bridge to Meliagaunce – the seducer of his beloved Guinevra – to find and fight with him. Launcelot deals with his shadow, because he has also seduced Guinevra, in spite of the fact that she is the woman of his King. The confrontation with your own shadow always starts a reorientation and change. We know the picture of the bridge from the Quran, which describes hell. That bridge is so narrow as a hair of a man and only the righteous can exceed, to get into a new, state of paradise.C. G. Jung refers the symbol of the bridge as unsafe places in our consciousness, which is threatened again and again to collapse our unconscious. The most important thing here is to cross the bridge and reach the other side. No matter how difficult it may be, you have to try in any case to reach the other shore if you have such a dream. If you did not succeed to do this in your dream, then you have to take the advantage of force technology that we use in our day-dream. Try to imagine as accurate as possible this dream, and the positive end will be when you reach the other shore. You have to make it yourself – perhaps in the form of an affirmation – if this dream symbol appears again, cross the bridge and arrive on the other side. This does not apply for the vision of the bridge, but for every situation in a dream, where you go from a known location to a new location. The arriving is important. If you move through the new bridge, the street and the mean of transport that you take a trip is described, always make sure on the condition of the bridge or road, or the means of transport that you take the trip. At the begining of a psychological change the bridge may be more narrow as in the Koran or in the Lancelot’s bridge. The bridge may also be in need of mending or wavering. The reason is that the dream can predict alterations of consciousness, the present consciousness of the dreamer but it still not so strengthened, this change helps to pass through the bridge without any problems.Think about it in your daydreams, the bridge will be safe, stable and wide. We prefer to stay as we are, and every personal transformation is perceived by us as a threat. In any case, bridges like all transitions are the places of danger. So pay attention to symbols, the transitions to something, symbolize different and new, and try to consolidate these transitions and stabilize with affirmations and daydream technique, you are prepared to transit to the new way.
2. The unknown space or the unknown land in the dream:
Each new territory which we enter in a dream is a symbol of new possibilities. Very often we find a new room in the house that is known for us or we travel to a country that is unknown for us. You dream the unknown room or country, it is always sure how this country or rooms can be characterized. If you remember such a dream, it is advisable to look at the new place precisely. Who can dream consciously, you should hold your inner film and see how is the new room decorated and what kind of atmosphere it exudes. If it is an unknown land, every detail that characterizes this country, should be seen as a symbolic reference to new life possibilities. Come back again in this dream and now look closely at the room or country. It does not matter that you are as accurate as possible to your dream, you can use your imagination to follow and arrange the room or the country. However it is important,
that this is not from your head or your hopes, but that you pass the vision of your imagination and see how it develops you.
3. A caterpillar, a butterfly and a snake:
The caterpillar becomes a butterfly, the snake sheds its skin. Caterpillars, butterflies and snakes represent common archetypal images of the process of personal transformation. The Caterpillar occurs in our dream , this indicates that process of changes has just begun and would perhaps tell us, that we have to spin up first, then we must withdraw and become a light butterfly. Who dreams of a caterpillar, you should try with the technology of the day-dream, to leave a caterpillar and become a butterfly, then identify yourselves with the butterfly. That has on the symbolic level, completed transformation – and what we understand at the symbolic level, we can implement easier in everyday life. We see a butterfly in a dream, the personal transformation process seems to be even more advanced. From ugly and greedy caterpillar has become a butterfly, that can move freely and easily. We just feel easy, flexible and beautiful for our change. We may not have arrived at the point, but the dream gives us at least an outlook where the development goes. This positive outlook on our future is often needed as a reinforcement, because if we get a taste of the beauty and freedom of our goal, which strengthens our staying power on the way there. The Snake is certainly one of the most complex symbols in the dream of Western people.She may appear as male or female, can be toxic or beneficial. For our consideration here, it is particularly important that the snake can slip from her skin and form a new skin. Exactly characterizes human change, in which someone often has the feeling to get out of an old skin. Check out the snake carefully. For example, what color has it got? To see the new or old snakeskin? The symbolic value of the color of the snake skin, can give you an indication where did you come from or where you will go. Be aware of where did the snake come, and where it has disappeared. Different from the butterfly, the snake is for the human drives. The skinning snake is a change in the power structure. At the same time the snake is cold – blooded animal , with which man can communicate only with great difficulty. And so there is, among other things, that our change processes run incomprehensible for us. We can recognize, but do not understand.
4. Other conversion symbols:
Each symbol has a variety of ways to represent changes in the life. It is no coincidence that you have just dreamed that, and no other symbol. If you can not find any description about the symbol that you have seen in the dream, then you have to think about three properties that characterize this symbol. Now apply these properties – that will certainly help you. Changes are noticeable, also the same as symbolism changes – you often have to be aware before something changes. A woman who was arrested for very negative thoughts. During the therapy she said that she had dreams a lot of cars. The dream image “car” aptly characterizes their situation, because it was a passenger cars, where you always sat alone. Better, the isolation can be used for the rest of the world, but not for the scene. Despite of all the isolation, and this image also makes it clear – this woman kept moving forward. As the therapy began to work successfully ,it made a noticeable change in her dream symbolism. Now it was the water, instead of cars, that was heaped as a lake, a river the sea or only the bathtub. Water as an archetypal image of the feeling, in this case pointed to an emotional opening of the dreamer, that you had not even seen.

Spiritually:

On a spiritual level, transformation in the dream may mean that the dreamer is aware of his psychic abilities.