what does this mean?

I have over the last few years had dreams where when i wake have been so vivid.

For instance one dream i had i was taken round my dads mums house. She had explained that she was dissapointed that her kids dont talk about her anymore and wanted them to know she was still around them, but knowing her kids they wont beleive me if i told them i had to give them something as proof. She took me through the hallway, leading me through the kitchen into the back garden. A path took me to the bottom of the garden which had a shed at the bottom. A gate was also at the end of the garden. She wanted to me to get some jewlery that she had buried in the garden before she died, She said she wasnt well and thought people were trying to steal it from her.The purpose of the dream was for me to go collect it.she wants her kids to talk about her again, this would certainly do it.

when i woke up i described the dream to my mum. I had described the house perfectly, down the colour of the carpet in the hallway to the layout of the house. Even the colour of the sofas in the lounge to the alcoves with ornamants and clutter. My mum couldnt beleive it as there is just no way i could know all this. You see my nan died before i was born. She took her life at a young age leaving three children.

I was reluctant to tell my dad as it was difficult to mention her name in conversation. My mum encouraged me to tell him,so months later i did. He just couldnt beleive it, as there was just know way i could of known, i beleive there arnt any pictures of the house that exist either.....

I didnt persue it to the point of finding out if the jewlery was buried, but i wonder what this means, should i take it as a visit from her...and be thankful for that. But its happened a few times with other people..

Can anyone help on this one.......xxx