Dreaming of my dead sister smiling is a positive sign as per dream meaning and interpretation. The dream means your sister has forgiven you. It also means you will achieve success and desire fulfillment in near future. Dreams of my dead sister smiling also means your sister is asking you to keep the promise you made.
Dream of dead sister smiling and you are not seen in the dream means you are doing something right and you just need to keep following the path.
Dreaming of dead sister smiling and you see yourself in the dream means you will achieve something but you will not be happy as an important person responsible for that achievement will be missing.
Dreams of dead sister smiling and you wake up terrified or sad means you are doing something illegal or bad and you need to stop it as it will result in huge problems.
Dreaming of dead sister smiling and you wake up happy means you will complete an important task in your life soon. You will get confidence and energy to overcome negativity.