When my brother died of a cerebral hemorrhage, I felt like my brother was alive. But when I held my brother's hand, I felt that the sense of the hand was not passed on to him. It was my brain, my ago to be alive. What I see forms ago. At the same time, the act of 'watching' is the result of ago. The world we see is different from the real world. Digital photographs consist of a single photo of a number of pixels, but we cannot see them. On the other hand, we naturally feel the depth of the picture in surface.