This question involves the plot of a classic Hong Kong cartoon. I'm not sure which pig you're referring to. If you're referring to Pigman in Pigman, then the reason why he healed people's hearts was because he was a brave, kind, and righteous pig. He always helped people solve problems with justice and courage in the face of various difficulties and challenges. His firm belief and warm behavior won him widespread respect and love. Other than Pigman, there were other characters and actions in Hong Kong's classic comics that also had healing qualities. For example, Qianxun in " Qianxun " became stronger and braver, kinder and more caring after experiencing various fantasy adventures. In Dragon Ball, Wukong had become more mature and caring after experiencing all kinds of hardships and difficulties, becoming a hero in people's hearts. Many of the characters in Hong Kong's classic comics had unique traits and actions that helped them heal people's hearts. The stories and experiences of these characters also inspired people to think and recognize the beauty and justice in life.