The Seventh Room Is Me

I woke up in a mental hospital and found myself trapped in the same day. It's 3:07 in the morning, and the light at the end of the corridor is always flashing. The nurse, Xiao Zhou, was wearing red slippers, and her smile looked like a sticker on the face of a plastic mannequin. When you push open the green-painted iron door, you will always see the same brick wall. On the seventh cycle, I found a piece of paper in the bedside table with four rules written on it. The handwriting is my own. Rule 3: There is a real madman living in ward 207. Every word he says must be listened to backwards. Rule 4: You cannot leave until you find the seventh room. But I searched the entire corridor and found only six wards. The seventh room doesn't exist at all. Until I pushed open the door in the stairwell that shouldn't exist. In ward 207, an old man was drawing pictures on the wall. He said I had cycled three hundred and forty-two times. Then he pointed at my chest and said: You yourself are the seventh room.