I had horses and ponies as a kid from ages 10 to 17. In my 20s and 30s, I'd dream 6 or 7 times a year that I actually still owned a horse, I had just forgotten about it, and if I woke up and got out of bed and went to the barn, there my horse would be. For 2 or 3 seconds after waking, I'd think it was really true. It was a recurring dream--I had it regularly. Well, I've owned Arrow for a year and a half, and haven't had that dream since! Guess it was one of my deepest desires, eh?
I'm not sure what that horse dream meant. For my standard "there's something I forgot to do" dream, I'm back at school and have forgotten to read the book that the English final will be about (Silas Marner, for some reason--a book I've never read!) or I've missed all the chemistry labs and have to make them up. Still--I suppose it might just have been my "I've forgotten something important dream" (like that I own a horse!).