As one of the oldest existences on Earth, stones carry the memories of natural history and human history. The Testimony of the Stone gives stones the role of a "silent narrator" through the process of "searching - collecting - transporting - commodified - testify". The black-and-white section in the middle of the film implies a cruel process of the stone being commercialised and eventually turning into a commodity. It does not speak, but witnesses everything.

From the breathing sounds of nature, to the sounds of hammering, heartbeats, and advertisement at the end - sounds are not only the restoration of the environment, but also have the meaning of memory, violence, and forgetting. Stones slide from nature to the non-natural in the sounds.