Dream about my aunty who passed away?

first i was in the town centre and my auntie walked past me, but she was just ignoring me and walking away, the second part of the dream i was on my grandmas street and she walked by me again but this time she looked at me and smiled then just walked off, idk why i have dreams about her because she died when i was six so i hardly have any memories of her anyway, what does this mean? my mum went to a physchic woman and she told her my auntie was watching over me the most, im just confuzzled lol :s thanks.