Buddhism also often presupposes poop as dirty. It is necessary to suppress sexual desire by imagining the poop in the stomach of the other woman in the early Buddhist practice method, or to store it separately because it is dirty, although it is necessary like a “dry poop stick” that appears as a hot topic of Zen Buddhism. The bathroom is called Haewooso, which means “a place to relieve anxiety,” but the management office was avoided. However, on the other hand, the possibility of looking at poop from a different perspective is opened in the practice of the initial Buddhist practice, the Sasumcheo. The first is the body in this practice of making the four objects of recognition, including body, feeling, mind, and truth. Among what happens in the body, the act of lying on the poo should also be used as an object of recognition. This process can be named as the guardian of the superintendent, and we can protect the supervision by noticing the entire process of eating, digesting, and sending it out as poop. When this becomes possible, we can recognize together that poop itself cannot be separated from life itself, and that is also the starting point for solving the problem. This perception of Buddhism s poop can be the basis for looking at the problems caused by flush toilets, which have become symbols of modern Western civilization, and seeking solutions. This culture of excrement, which makes people regard what comes out of their bodies as just dirty and unpleasant, is not sustainable, so only by linking the process of life and death with awareness of the link between food and poop and seeking active solutions can the way to ensure its sustainability be opened.