As a force, cultural force is not a direct-acting force, its manifestation and play must be through a certain genre or medium, either it is resistant to people's ideas or spiritual ideas, or it is materialized in a certain material product On the spiritual product, only through the spiritual or material carrier can the cultural power have a real existence, that is, the cultural power is not an immediate and visible power, and it cannot be controlled and controlled by people as they wish. This is one of the reasons why people's understanding of cultural power has been very vague for thousands of years. What does the author mean by this text? ['Explain that cultural power is a soft power.', 'Show that the expression of cultural power is diverse.', 'Explain that cultural power is inherently dependent.', "Explain why people don't understand cultural power."]