Dream of child, eyes

As a young child I used to have dreams and nightmares a lot and have recently been thinking about them. There was this man that would often appear in my dreams. He would not have a place in the dream but just suddenly appear. He had shoulder length greasy brown hair and a scraggly brown beard probably a couple of inches long. He would show up and stare at me and I would feel so afraid I cannot explain, just had to get away from him. He would stare right in my eyes and the fear would be unbearable. I remember at least once a piece of his long hair would stand up like alfalfa. I felt like he was very evil. He would just randomly show up in dreams staring at me and I would run away and would wake up right after. It is very strange, what could this mean?