Dreamlike it comes from a Greek word that can be translated as "dream" . It's about a adjective which is used to name what is linked to the world of dreams . For example: "I've read enough tonight: I'm going to surrender to the dream universe", “I always write down my dreams so I keep track of my dream activity”, "I had a dream premonition and I played the lottery ... but my number did not go out".
Beyond what specifically happens during a dream, the notion of dream is also used to qualify what seems unreal (and, therefore, that could be part of a reverie): “The sun setting in the sea and dolphins playing in the water created a dreamlike landscape”, "When going out with the child in the arms of the house on fire and raising his thumb, the fireman offered a dream image to the journalists covering the situation", "With 45 points, 16 rebounds and 11 assists, the Chicago Bulls player had a dream performance".
Within the scope of literature, it is very common that the term in question is used. Thus, in particular, we can determine that the so-called dream world is usually spoken of in it. This we can say is the universe that creates an author with the clear objective that the reader of the work can know what any of the characters dream. In this way, you can see that the protagonist's problems are reflected in dreams, through all kinds of situations marked by sadness, loneliness or lack of communication.
It should also be stated that, within any narrative, it is also frequent that the term dream world is used to indicate those situations and experiences of the figures that refer to states of madness or fever.
That type of world "faces" in literature to others who also come out of the author's pen. This would be the case of the mythical world, the fantastic, the utopian, the everyday or the realist, among others.
The term we are addressing is also used within the painting. Thus, for example, there are several authors who are irremediably associated with that word. This would be the case of the Spanish artist Salvador Dalí, who is considered the dream painter par excellence. Why? Because his paintings reflect such a degree of fantasy and surrealism that they are considered by some experts that have only been the result of dreams. Among the works that best represent these are "The Temptation of San Antonio" or "Inaugural Chicken Meat".
He oneirism on the other hand, it is a disorder of consciousness that leads to a person to lose its location in the real plane, confusing fantasies similar to dreams with reality. In these cases, the subject has hallucinations that seem typical of the dream plane and that lead him to mix the imagination with the real.
When visual hallucination is accompanied by other sensory disorders (such as listening sounds that do not exist), there is talk of a dream delirium . This can be caused by various causes, from drug use to exhaustion, through high fever or infection.