In my dream I saw dead polar bears along the side of the road. There were atleast three.

What could this mean?[/b]

The first thought that comes to mind is something "laid to bear" (or bare).

Also, what do you associate with bears? Polar bears are white? What about white?

Bears are protective of their young, they hibernate, and are strong. Polar is cold, artic, and snowy. The polar region is a place that is unhabited.

Do any of these associations resonate with you?

I have not been on good terms with my mother lately. Could this have anything to do with it?

Yes, absolutely.