What Does It Mean for a Mermaid to Eat the Mermaid Fruit in One Piece?

On the first day of time travel, Lin Fan witnessed a little girl being put into a slave cage. He told himself: Don't worry, live on first. But a broken mango as big as a thumb changed everything. Many years later, he stood on a flying ship, with a warm golden light burning in his chest. He was surrounded by a mermaid girl who refused to give up, a wanted genius shipwright, and a rich woman who was extremely rich but just wanted to listen to music. The ship sails through the clouds. The wind surged up from below. He finally dared to say to himself: "I want to see this world. Even if it is not beautiful." ——That was the first time that the world responded to the voice of a time traveler.