There was a thought that sometimes the happenings in somebody's dream may happen in real life and sometimes having a bad dream can cause your death, that dream was called "nightmares". Dreams could be bad luck, they could be sad, they could be a tragedy but in the bright side these dreams as said could be a reverse happening in real life.
Here are some kinds of dreams:
Research says that daydreaming can reduce stress and provides an opportunity for creativity and the incubation of new ideas without the usual inhibitory brake of our rational and prudent prefrontal cortex. During daydreaming period, our minds are more likely to tackle hard to face life problems that we may be unwilling to work through in a more focused way.
However according to studies, there does still seem to be some interface with the rest of the waking brain during lucid dreaming. As told by the one who attempted to control his lucid dream, he tried to dream about his own death by directing to his lucid dreams towards suicide, but the dreams always changed scenes and avoided the death. This also says that it is impossible to control your laugh and everything you want to control in the process of lucid dreams, suggesting a high level of awareness of bodily actions and sensations.
Recurring dreams, the recurring dreams are dreams that repeat themselves from e night tonight with a little difference. They could be a good dream, a bad ones and always bad mostly as nightmares. This process of dreaming Was still unsolved and remained mysterious.