Why did most of the protagonists in fantasy novels transmigrate from Earth to the cultivation world?

This question involved many different fantasy novel schools and storylines, but most of the main characters of fantasy novels might have many reasons for transmigrating to the cultivation world. 1. The need for cultivation: In fantasy novels, many characters hope to improve their realm and strength through cultivation. Therefore, crossing into different worlds to find different cultivation resources and inspiration may be a good choice. The setting of the world view: The world view of fantasy novels usually has many different worlds and realms, and these worlds and realms often have their own rules and resources. Only when the protagonist transmigrated to these worlds could he obtain these resources and rules to begin his own cultivation journey. 3. Enhancing the story: Crossing into different worlds allows the reader to better integrate into the story and increase the interest and durability of the story. For example, the protagonist might encounter various strange characters and events in an unfamiliar world and embark on a thrilling journey. Changing the course of history: Sometimes the protagonist transmigrated to the cultivation world to change the direction of history. For example, the protagonist might save a country or region from a disaster through cultivation or change the outcome of a historical event through some means. It should be noted that these are just some possible reasons. Different authors and schools may have different settings and explanations.