What do you think of dreams?

Do you consider them to be good/bad omens?
Prophecies?
Something hidden in your subconscious?
Did you ever dream of something that came true?
You can provide a detailed answer, I don’t mind. I’m sure they’ll be intriguing.
For example: If you keep dreaming of a person doing something to you in you dream. (No, not something rude.) Does it mean that’s really how they feel?
You can feel free to include any dreams of yours.