Dream Divination comes from my ancient tradition. It's said that god Asklipios (a small god of cure) gave his secrets to the witches here in my area. One of those secrets was dream divination. People used to beleive that this small god used to cure people through there dreams but not only. All around Greece people are translating their dreams but not all dreams are prophetic. There are many different ways to get a prediction through a dream or a prophetic dream. Each one is different. We distinguish 10 categories of dreams and not all of them are for divination even though each one category has something to tell us. Depending of what you want you can cause a prophetic dream or a prediction dream or (what J said) guidance dreams where you come in touch with spiritual guides and more. Of course I must agree that without the proper knowledge and guidance dream divination is not really reliable but if you practise it you know the difference.
Sumerians, Egyptians (the Great Pyramid), Assyrians, Babylonians, Jews, early Christians, Chinese and more used to have and some of them still have similar practises. There used to be even temples and special places where you could go and get one of those dreams. There are some well known practises of getting a prophetic dream. During prophetic or prediction dreams you see actual facts and hidden messages that show you the details that will help you to be ready for those situations.
Lucid dreams, astral dreams are all types of dreaming (remember 10 categories) but we can have a dream of prediction (divination dream), a prophetic dream (quite rare and it's also a type of divination), a nightmare (they usually help as to understand better what scares us and keeps us behind in life), psycological dreams (that have to do whith anything that can affect our psycology and our biology), repeated dreams (they usually don't have any messages and are just pictures from our subconscious mind), guidance dream (as J said before), dreams connected with our soul (they have to do with the dipper understanding of our own existance and soul) and telepathic dreams (which actually are a gift, an ability and not many people can have them, you can see real facts that happen at the moment or close to that moment)
I practise dream divination almost since ever. My grandmother used to do so, my aunt, my mother. I can understand the symbols and the type of my dreams almost always, ofcourse some times is just harder cause there is not a specific label that shows you the type of the dream. So yes it's very easy for your psycology to create a misleading impression or think that an other type of dream to be a prognostic dream but it's a type of divination that if you know how to practise can show you so many things.
So I hear you people, your opinion!