It means nothing it all. It was just a dream, like any other. They never make sense and should be forgotten about.
so u r like 35 years old and have a granddaughter ....................oh boy what a family ...lol
I guess that meant she was not underwater.
what happened next ?
She's at home sleeping, or doing something to make her happy! Dreams are just dreams! Don't let them get you worried...all is ok...
It is just a dream and it means nothing (really) so dont be alarmed because I see dead people all the time