A sleeping character dreams a vision of events past -- sometimes long past -- and certainly ones he never saw. While they can be hard to fathom, like Dreaming of Things to Come, they are unable to be warded or fought off, since they are long gone. And unlike Dream Spying, the characters are seldom detected by the people they watch. Dream Weavers can send them. When a character is Talking in Your Dreams, the other can show them. Usually used to reveal information. They are always, of course, true. Beware, though, that sometimes the past is not an era friendly to human sanity.