Today, we pay attention to changes in the seasons, the weather, and the length of the day. However, in the past and in traditional cultures today, knowing these things could be and still are a matter of life or death. Native Americans who fish needed to predict when salmon, for example, were due to arrive so they could prepare their nets and boats.
Gatherers know when fruit is ripe and seeds are set and watch the changing length of the days.
They need to predict how long winter might last so that they store enough food. Merchants need to protect their cargo from hurricanes at sea or overland caravans from the desperate summer's heat. For thousands of years, people have studied the length of the day very closely. They have kept track of what planets and stars appear in the night sky and when they appear. Just like people who live in close contact with nature, you probably tell stories about the weather and the sky.