“Life is...” Introverted, extroverted—life and death repeated unconsciously in everyday life. On the timeline from the birth of the universe to the present, the lifespan of every living being is astonishingly fleeting. It expresses the strength and beauty of life, which resists various events and continues to live on through a chain of memories. All living beings, including humans, are unaware of the phenomena taking place within their own bodies, such as the life and death of cells. For example, if planets or the universe were a single organism and living being, endlessly repeating life and death across an eternally long span of time, perhaps we too are like the cells that support their life processes.