I've always been a good dreamer, and I usually remember at least something of my dreams. Though there is a ton of nonsense in this area, I do believe that reflection on dreams can be a useful tool for the spiritual life. For years I've been taking notes on them. Though an individual dream might remind me of something that needs attention, it's the general themes and recurring motifs in my dreams that I find most enlightening:
The most common theme or narrative of my dreams is a search or a quest. I'm looking for something or somebody. Within the movement of seeking it's often the paths that are the most vivid memory: roads, tunnels, ladders, forest trails, etc.
My dreams are more commonly outdoors than inside. Rocks are a common element: rocky landscapes, rocks that I have to carry, etc. Indeed I'm often carrying something in a bag or--for some reason--in a bucket.
I'm usually on my own in a dream. When I do interact with other people, they are usually people from the past rather than the present. The same goes for the places; they are most often places I used to live. (Since I have received my mail at eighteen different addresses in so many years since I went away to college, there are plenty of choices.) Encounters with others usually take the form of brief and jarring conversations, the kind that change things and the course of the dream.
I rarely eat in a dream. Nevertheless, if there is food in the dream, it is almost always Chinese food.
Sometimes I dream in black and white. Sometimes I'm reading the dream like a story in a book, instead of actually seeing it.