Well, if there are a few things, maybe it was about all of them.
Dreams aren't magic, or premonitions, or from heaven or hell.
They are just extensions of what is going on with you. During your waking hours you absorb everything that's going on around you, but not on a conscious level.
When you sleep/dream, things you may not consciously be aware of present themselves, and epress themselves in sometimes strange (not necessarily bad) ways.
I recently read a book about creating artificial intelligence. Well, actually I just read the first half of the book, as it addressed our brain functions. I wasn't that interested personally in how it's being applied to technology/computers etc. I went into the book knowing I only wanted to read as far as the human brain part.
I learned something. A persons cerebral cortex is (following is a cut and paste from Wikipedia, says it better than I can)....the outermost sheet of neural tissue of the cerebrum of the brain....The surface of the cerebral cortex is folded in large mammals, such that more than two-thirds of it in the human brain is buried in the grooves, called "sulci"
ok, all this folding, all these wrinkles....are like a maze. Again, not in medical terms, but it's working to make connections....it wants everything to connect. When you see (these are my examples) a slice of bread, you may think of a sandwich of course, then a certain type of sandwich, etc.
But what's going on when you have this off the wall, seemingly unrelated to anything thought, like a deer riding a unicycle? Where did that thought come from? It's your brain trying to make a connection somehow between some instances of information your getting from the environment. The electrical impulses in your cerebral cortex and searching, seeking putting together and finally put together something perhaps improbable, but, well, I guess it's the best it can come up with at the moment. It all happens so fast you don't even realize there's anything to connect. You just have a flashing thought of a hula dancer ticked off at the plumber for not arriving on time with the enchiladas.
Your dreams are just happening when your brain is in down time, and can express itself more extravegently and freely.
I kinda feel sorry for people who think it's unusual not to vividly remember dreams, and I really feel sorry for people who say they don't dream. We all do. We just all don't remember.
Then again, I'm sure there's many who remember a lot more than you or I do.
Anyway, I think for myself, dreaming is important to my mental health.