One day I climbed a mountain alone. But I felt scared because it was the first time to climb mountain alone. When climbing I checked a mark to identify my direction and distance on the peculiar things such as stones or leaves. But during going down a mountain, I felt eerie experiences that make me confused. All stones looked similar. This looked like that and that seemed like this. That time I thought about myself walking around the same place continuously. After then I embodied these experiences like this work.