I followed those artists and came to the grassland. I was not one of the members of them, so I kept my silence，so I was trapped by the loneness and could not be involved in this tribe. But, surprisingly，just because of my absence （as a director）, the livelong documentary is more objective and realistic.I didn’t consider many forthcoming poblems. Just followed my mood and the “providence”. I didn’t care about the unaesthetic function of my images. The equipments, composition of cineotography and the theme were not important. I call it undisturbed freedom. I tried my all-out to stay far away from my shoting subjects. Then this documentry, Dopamine，was produced. This time was my funniest film-making experience.