My friend and I were researching the occult and its practices and came across the unicursal hexagram. My friend became obsessed with it and would draw it everywhere. He learned to draw it in one pen stroke. One day I felt I knew that something was terribly wrong with him. But we were not due to meet until a few days later so I had no idea what had happened to him. When we did meet he told me he decided to write his name inside the hexagram for the first time during break at work. Within half an hour of doing so he felt sick, had severe diarrhea and vomiting, was light headed and felt weak. After he came back from the washroom he immediately erased what he drew. Turns out I felt he was in some sort of trouble after he became ill. Thankfully he fully recovered by next week.

I am posting this as a warning for any one who wants to dabble in the occult - this practice produces real results, be careful.