You want to have sex with your Mother.
Freud doesn't explain this dream, sorry.
Anyway, here's what happens: I'm in my old house (me and my mother moved from there 7 years ago), in the kitchen while my parents are in their old bedroom (they're divorced since 2007). I never remember what i was doing there, but, suddenly, i see something outside (it was always someone that i couldn't see or remember the face. In this last time, it was a figure, almost a shadow). I try to talk, but my voice goes out like if i was hoarse, after screaming in a concert or a football match. I stay like that for a while, trying to shout a name and my voice never going out whole, until i decide to see my parents. Than, the person/shadow sees me and i wake up.
I got curious because, in this last time, my mom said that she heard me moaning on bed, and it fits with what i do in the dream. She said that she tried to wake me up, but i didn't even noticed. And, because i have this same dream for years, it's one of the few dreams that i can remember when i wake up