The ones you have at night, when you hopefully sleep, that make little logical sense. Have you had one? Tell about it! Or, what you remember. I on my side quite recently had a dream like that. I was for some reason a small girl with an even smaller brother, that one day was out in a sort of spacey forest. Suddenly, as we were leaning against a tree for shade, boom. Anthropomorphic trees. So the trees, which it was a lot of, first destroyed our parents' house on our command, then forced the rest of the nearby town to travel by boat far away. They were close to leaving shore as some sort of police force interrupted it all, followed by me waking up.