Fear is a natural emotion. It’s a feeling induced by a perceived threat that can cause us to run, hide, or freeze in terror. Unless you’re like SM on the “World With No Fear” episode of Invisibila, you know what it’s like to have fear.
Earth takes 365.256 days to complete its orbit around the sun. During that time, its position in space determines our seasons, which affects our agriculture, which affects our food, which affects our diets, which affects our health, and so on. Earth’s journey through space is so revered, we measure time by the number of orbits we’ve experienced.