If you dreamed that you killed your sister: There may be conflict of different ideas, narrow-minded thoughts or bad ideas or people who think badly. To see that you killed your sister in your dream indicates that this person will give your sister a great support, help her in her material and spiritual life, be with her, and have a happy family life. We can also say that anyone who sees that he killed his older sister will also find peace and that the person will not feel alone for the rest of his life. To see that you killed your sister in your dream indicates that water does not leak between you and your sister, that they overcome the troubles and problems together, that they will not separate from each other.