I recently had a dream where my wife and I were browsing some shops in the neighbourhood where my grandmother used to live and we wandered into an old bookshop. It was packed with people. An elderly women started singing a Christmas Carol to create a happy atmosphere, something just grandmother would often do. I saw the face of this lady, who was not my grandmother, but when she walked past me, from the back she reminded me of my deceased elderly grandmother, then more and more details of the bookshop started reminding me of her and I broke down in tears. She didn’t speak to me, she never actually worked in a bookstore but everything was very familiar and reminded me of her. What does this mean???