I don't know. I do not really believe dreams are always have meanings. Sorry for that.

When I can't remember my dreams (like now) that's because I'm too tired with the day activities or the dream is meaningless.

When I remember dreams, mostly it is because they're too exciting and weird. I remember the weirdest dream was become inanimate object. I was a sunken ship, in a very deep sea but funny thing is I can see through the darkness. I was surrounded by countless underwater creatures from a tiny blob through very massive fish like whale.
Sometimes, I dream becoming boys multiple times, from a black kid through very attractive man.

The most exciting are the dreams involving those 5 worlds. Honestly, 3 of 5 worlds are created from dreams and developed in my daydreams.

My nightmares are came from RL stress or my fear with ghost/monster. This type is I believe has meaning. The rest, I don't think they have.