Okay after sitting under a "led blanket" for an hour i finally started focusing on a random picture that showed up in my head. Eventually i was sitting next to a girl near a lake . Then the first thing i did was turn around and saw a random city i turned back the lake was gone! Then i looked at my city and then a very bad thought surfaced "What if these people randomly turned into demons?" Then (what a shock) they did and then they all ran after me i got scared and woke up!!!! How can i prevent these thoughts????