I was 22 when my Mom died(my dad died when I was 11) and I remember having dreams about her every night for about six months. These dreams never addressed her death or any discussion about what I was to do - we had already went through those talks before she died.
Nope. We would sit in the living room sipping coffee, watching Little House on the Prairie, and make small talk - our typical routine. I'd wake up, realize she was gone, and bawl my eyes out.
Now, I can't say whether it was her coming back to comfort me, or if it was my mind creating a mechanism so that I could slowly adjust to her absence, but to this day, I am thankful for it...