Dream Interpretation Anyone?

I am a person who generally remembers her dreams, so I don't necessarily think it's notable when I remember them. But when I can't get it out of my mind, usually it means that I should take a closer look. I frequently am able to interpret my own dreams, but this one I think begs another opinion.

So I'm in my parents house. This is the house we all grew up in. My parents have been there 31 years - I was a couple years old when we moved in, but my 3 siblings have grown up there. Their house is a colonial - 4 levels including the basement and attic. In my dream, my parents have sold their house - but instead of moving out, they are moving into the attic. It's almost like they have no where else to go, and they are mourning, watching the buyers moving all their furniture into the house. So my parents are remodeling the attic, adding bedrooms and a bathroom. You have to know that right now their attic is full of stuff the four of us kids have stashed up there over the last 30 years or so - so who knows what the *bleep* is up there. So in the dream, my parents have moved all us kids' stuff that we have stashed up there towards the back of the attic, and they have asked me to come over and go through my stuff and either take or get rid of all of it. Oh and I should mention that in the dream I am an adult, but my two brothers are still small, like 2 and 6 or something - even though they are now actually 24 and 28. And the attic is about 4 times the size it really is, big enough for bedrooms and bathrooms and a kitchen and stuff. So I spend time going through all this stuff, though I can't remember any specifics - I have the sense that I'm going through memories of childhood as I go through the bags of stuff. Like school papers and clothes and stuffed animals and stuff that bring back all these memories. I'm not sad, just nostalgic.

I woke with this sense that I'm supposed to do something or at least realize something important - but it's not necessarily about my childhood or my parents. I get the sense that it's probably spiritual in nature. But I could be wrong.

So beyond the ridiculously obvious (that I need to move out of my childhood spiritual home or that I need to remodel my spiritual home) this is what I want to know:

What does it mean that my parents have sold the house?
What does it mean that they are going to move into the attic instead of moving out?
Why are we watching the buyers move into the house while we're moving my parents stuff to the attic?
Why are we sad about this?
Why are my brothers still little?
Why is the attic so big?
Why am I going through all my old stuff?
Why am I not sad just nostalgic about all my old stuff?

Anything else you can think of? Any takers?