I think for some people they do.
For me no because I have really weird dreams. Ok, like my last one was about my Dead Grand father who died a few weeks ago. Also, my dad who just got re married. Anyway, it was so weird. Ok, My grandfather was marrying my dad and his new wife and he was an Elvis Impersonator. And everyone was dressed up like Elvis. And they were married in Las Vegas in a Casino next to the Black Jack table where I was sitting playing the game as my dad got married. The the Real Elvis came out and said "I will not have anymore of this". And made everyone take off thier Elvis costumes.
I think if I told that to a dream expert they would say yeah it just means something is wrong with you. And that I have issues and need to deal with them!
Brooke WI