My sister who died was still alive but she had dissappeared. Nobody seemed to be bothered about this, and I was worried about her. I was the only one who was worried, and it was strange to me that nobody seemed to care that she is missing. I worried where she was, if she is ok, and why other members of the family don't seem to care.
This dream could be a manifestation of your subconscious mind's unresolved grief and the desire to reconnect with your sister. The dream may also reflect the feeling of being alone or unsupported in dealing with your emotions related to the loss of your sister. Your mind may be trying to process the confusion and cognitive dissonance that arises when you know something to be true (your sister's death) but you wish it were different (her being alive) and the reality of that wish being unfulfilled. It is important to acknowledge your feelings and seek support from those around you. The dream may also be a message that you need to find ways to honor your sister's memory and keep her legacy alive.