Prophetic dream, envy, green smoke, incest, or something else.

I will try to explain this as clearly as possible. When I was a child, I had a dream about being excluded from something incestuous. The dream began with me facing a crystal ball surrounded by green smoke, in which I saw my sister Khadija and a friend from that time engaging in inappropriate sexual behavior. I was crying because I was left outside. I am unsure of the dream’s meaning, but I believe it may have come to pass. Due to subsequent events, I cannot say for certain, but I question whether my sister Khadija was the reason these things happened, as it seemed she was in control of the situation. I do not understand why she would be involved, yet if she was responsible, it may explain the events that occurred.