Hi, I am the same Rick as the one that posted the dreams before. I just registerd here

I am 14 years old.
This is one of the most scary-est dreams I ever had. I posted them on other boards but never got any answers.
I am a scientist. I am doing research on someones life. That person is dead, and I want to find out more about him by researching his small house. The house is in the middle of nowhere, between some mountains and a peacefull scenary. The first day, I don't find anything. The next day, I return to the house, alone, and I want to say hello. Just for fun. When I say hello, it is almost like it is not my own voice and it is really loud with an echo. It scared me very, very much. The feeling I got was like an heartattack. Suddenly I feel this angry person coming straight towards me. I can't see it, but it's energie is so powerfull I can sense him. I just know it's the man who lived in the house. I awake, still having a feeling of him being in my room. What does this mean?