I had a really weird dream.

So on the start, I was in our living room usually I close our windows and curtains so that nobody can see us or dare to rob us. I am the oldest sister, I am 14. But then, just as I was about to close it, A car came in our window and advertised something. It was a guy and the inside of the car is really dark. But I can see a presence inside. I forgot what he asked for, I just know that he was asking for something. And also, I saw my auntie outside, It was also night time and she was sweeping. I looked at her then back at the man and refused for whatever the man was offering. I closed our window, closed the curtains and went back. Just a while later, someone knocked on our gate. I went to check on it and saw it was another man, he offered the same thing earlier like the man inside the car and this time, he was being more forceful like he wants me to accept the offer. In my dream, I closed our gate and padlocked it while taking to him. I cursed at him, flipped him off and I saw the rage in his eyes. His pupils became small, I still remember his face. His face was round, a bit chubby, and he was wearing a black polo and his hair was in a hair pattern baldness. I just searched it up just now. And I saw the man trying to break in, shaking the gate. But then, I saw my sister killed and a pool of blood with her while she lay dead. I grabbed a hammer and killed the guy. I slept at 9:46 I think and woke up at 10:01.

Can someone tell me the meaning of why is my sister stabbed?