I had a dream last night that scared me. I am 20 years old and I had a dream about my grandmother that passed away when I was 6. I am named after her and the dream was clear and in color. I have no memory of her except seeing her in her casket and her funeral. In the dream my mother introduced us and we talked about various topics that I don't remember. All I remember is that at the end I asked her "What is heaven like?" and she replied "It's nice, but you don't go to heaven right away, you wait a week." Then we hugged. And I woke up terrified. What does my dream mean?