In short, if you dream, in fact, if the content of the dream is predictive, then its content is often the opposite of what will happen in the future.
For example, it is a good thing to have a nightmare and see blood thrown into the well and the dead.
And dream of building a house ~ ~ ah, someone in the family has been promoted or developed. Such a gratifying dream indicates a bad view.
Of course, it is not absolute.
This is a common sense of dream interpretation, which can help you.