What does it mean to dream that grandma told my mother and me that she was dying?

This kind of dream is actually that you didn't have a good rest, adding the illusion of work or high tension, so you will take a light sleep.

So there's no need to watch too much. Be sure to relax yourself and strengthen physical exercise. This is good for you.

You dream about this, which only shows that you still miss your loved ones very strongly.