Answer:
Storytelling in the early world was obviously very primitive and unknowledgeable. They used strange concepts to understand what they could not understand. They used a substitute to understand what they could not understand and/or had no explanation for. Since anything could happen, these stories were usually fictitious and used concepts of Gods and Spirits to explain things. Such as rain, those would be God's Tears, which we obviously know isn't true. But anything could happen to them since they didn't have the proper knowledge to analyze the situation. They created a story instead of using facts to create a real narrative.