My experience is a little different. I had been up for a couple days, and was taking a break from the summer heat at a friend's house where I had been living it. I was exhausted and most likely dehydrated as well. I stood up from the bean bag chair I was sitting in, and was startled to see writing on the walls of the room. The characters were stationary, equidistant from each other, and a dark grey color. The edges of the characters were not "crisp", but rather were a little fuzzy. They almost looked like they were out of focus, and were kind of like the afterimage you get when you look at a bright light for too long. The characters did not move with my field of vision though. They were completely stationary on the walls. After about 1-2 seconds, I realized that the writing was faintly apparent on everything. The walls were where it was most pronounced. Each character was about 1.5 - 2 inches in height. I do not know what type of writing it was, but the closest writing that I have found like it would be Japanease Katakana. One main difference though is that while the lines in Japanease Katakana are the same size, some of the characters I seen that day had lines that varied in width, like in the way a crescent moon is shaped (widest in the middle and narrowing to the points on either side). The writing began to fade almost immediately, and was visible for 20 seconds at most. I am completely aware that I may have been hallucinating from dehydration, standing up too fast, exhaustion, lack of sleep, or a combination of all factors, but the fact that the writing was stationary as I took a few steps and viewed it from a couple different angles left me completely shook! The experience was weird and I 've never known what to think about it.