Firstly, the world can be changed into a better place if people are generous, united and when they are willing to help the others and not expecting any rewards from them. In the movie, Trevor does his best to change people's minds and the world. He offers food and a shelter to a homeless man. He also tries to fix his relationship with his mother, who has broken up with his father. The idea of paying it forward' begins to spread in the town. Almost everyone is keen in taking part in this project and wanting to help the others. It reveals that love is growing among people. In our daily life, charity organizes activities to raise money and other materials so as to help people who suffer from poverty and starvation in poor countries. During the SARS period, volunteers gathered and visited old people. They helped cleaning up their places. These generous people and volunteers may not be "paying it forward' like the characters do in the movie, but they are trying their best to help others, even strangers. They change the world and spread love.