A friend once remarked that he didn't think there was much more boring in conversation than people recounting dreams. He has a point, Carl Jung thought dreams were specific to the dreamer and my experience has been that the conversation is usually a monologue punctuated with the words 'and then...'.
I read a theory that dreams help us prepare, like some teaching tool for unlikely events. It cited that many people talk after accidents of how it was a dream-like experience. I guess this would be a way for the brain to create neural pathways to cope with challenges.
I like this idea because I sometimes think I see the future in my dreams. It's a crazy idea I know but I guess I like thinking it. This started when I drank a bottle of mugwort beer that had been given to my partner but she couldn't have it as she was pregnant. I drank it and had the most vivid dreams but I won't bore you with the details.
Since then I've had more dreams that seem prophetic but also some I hope aren't. Like after my first child was born I had a heap of dreams where he died or suffered accidents and I guess it was either a sign of my subconscious coping with my new role or it was a way of preparing me for the possibility I will need to react to a seriously challenging circumstance.
Dreams are weird.