When I was 7, for a period that seems to have been weeks or a few months, when I lay in bed at night in the dark, I would make a fist (of my left hand as I remember, I am left handed) and a thread of what looked like green glowing fishing line would come out of my fist. It was like I had a bundle of thread in my fist, and would get the end of it with my right index finger and thumb, and pull it out. It would hang in the air, remaining wherever I placed it. I used to loop it into simplistic flowers. It eventually stopped happening, or I lost interest in it. 40 years later, my memory is that it seemed completely real, not imaginary. I can't do it now. Has anyone heard of or experienced such a thing?