The theme of this design is inspired by the philosophy of impermanence in Japanese literature, also known as mourning, which is a concept of life and death. Its subject pursues ‘momentary beauty’, not hesitating to ‘seek eternal silence’ in the moment of beauty. In my further research, I discovered that one of the things in nature that fits well with this literary concept is the growth process of fungi, as Henry David Thoreau said that ‘the most insignificant fungi present a life similar to that of man’ (1858, Henry David Thoreau, Journey), and in recent years the study of the DNA of fungi has confirmed this observation by confirmed this observation by Thoreau-the branches of the tree of life in which fungi coexist with a variety of organisms are very similar to the branches in which humans are found. Recent research has shown that the state of existence of fungi is also relevant to humans, as tens of thousands of organisms die every day in nature, with countless dead leaves and animal excrement, and bacteria and fungi take on the role of ‘cleaners’, whose greatest skill is to break down dead complex organisms into simple inorganic matter. This is the process by which they remove nature’s ‘waste’, the process by which nature’s material is recycled. This project aims to bridge the gap between humans and nature by building a piece of design that is in harmony with our lives. The project illustrates the harmony between man and nature through the growth and death of fungi.