Once, I dreamed of a horrific school bus accident. In the dream, the bus was on fire and there was a little girl with her face pressed against the window, crying, tears streaming down her face. I appeared at the bus, in the dream, and I was talking to her, trying to ease her fear before help arrived.
A few days later, that picture with her little face in the window, was on the national news. In a different city.
I have no idea how or why, but this kind of thing isn’t new to me. I often dream things before they happen. I completely agree that dreams are a doorway to the unknown. :)