On January 17, 2012, I was walking on a tree-lined avenue with few people when I was suddenly stopped by an old man: Girl, please take a photo of yourself! I looked at the old man, who had a kind smile on his face. Next to him was a big-headed machine that looked a bit old. Suddenly I remembered that when I was young, I always played various poses with my friends in the big head camera. I felt a little nostalgic in my heart, so I smiled and replied without hesitation: Okay! The old man opened the curtain for me, and I went in. As soon as the curtain was opened, I suddenly felt that I was surrounded by a soft white light. My memory went blank for a few seconds, and everything returned to normal. I thought I was in a trance because of working overtime last night, so I was not in the mood to continue taking pictures. I opened the curtain and walked out, but I was stunned in place...