The animated movie McDull Rings a Bell tells a story about perseverance and not giving up. McDull is a little pig who is determined to do well in a martial arts competition in order to keep his mom from being sad. Although he is not good at martial arts, he eventually realizes his goal with his hard work and perseverance.

The story also contains another important truth, which is to do everything according to one's own conditions and not to blindly pursue unrealistic goals. As the Taoist priest in the movie said, "In a teacup, only toothpicks can float; if it's a ship, it takes a river to carry it." Everyone has their own abilities and limitations, and only by being clear about this can we find the right path for ourselves and realize our dreams.

Overall, "McDull Rings a Bell" conveys to the audience the truth of perseverance and living within one's means through a heartwarming and humorous story.