Dream About Seeing Deceased Loved Ones 4

In my dream I was at this table, we were in a old on. Me, my mom, my aunt Oliver and other people. It was for my birthday which is weird because my birthday was in April and it’s now June. When I first sat down I saw my Nana was sitting in front of her and talking to her. I was super excited to see her and then in my head I thought “But wait, you’re dead?” Then my mom asked who I was talking to and when I turned back Nana was gone. I said “Nana! She was right there!” And my mom said “But she’s dead..” with a surprised look on her face. I said “She was right there! She was real!” And I looked at my mom and my aunt and they both were sending eachother surprised looks then I woke up. My nana died June 9th. It’s June 21st.