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Many years ago i heard a story from my mother about one of my paternal grandfather not being identified by my grandparents.It's as the story goes after some happenings his identity was questioned and no one in my family recognized him in the current circumstances.Forcibly he was bitter and in death also he went unidentified.Its said that misfortune falls on every member because of not recognising his identity.My father already has done the funeral rites according to our religion but still i feel his spirit is not sated.Its feels like a curse upon the family mostly on females because of the denial of his acceptance by my great-grandmother.What should i do to seek forgivness from my ancestor?