When I was about 13, I had a visitation that told me that I would be next and I was coming for you. I have always experienced something in my home when I was young. I could sense the presence in my home, it was strong at night. When I was a child, about 6, I would be visited by something that kept watching me. Why, I am not sure. There wasn't any tragedy that occurred before the visitation at 13. What I found out, was I was an angry teenager, always fighting and arguing. My mom believed that I was being influenced by something, but not sure what.
So, one of my mom's cousins, came over with Sage and started to burn it in each room. She than made crosses out of the sage and placed them at each window and door. She said it was to keep them out. I have not had any visitations since, but I have always had visions of things to come while I sleep.
I can sense my grandmother and was visited twice by her. She has even waken me up in class when I would fall asleep in college. My great-grandfather has been there as well. They are some of the ones that are visiting me.
Since then, I have been searching for an answer for visitations. How visitations can take place in the mind, and so I have been writing and collecting data to add evidence to my theories. Here is one of them I have posted off my server, http://paranormal.moorehavoc.com. It talks about Energy and Frequencies, and the way it interacts with us everyday. It is a work in progress, and I hope to finish it.