Koi was a mythical creature that was often depicted as a carp with magical powers. In many novels, koi were regarded as a symbol of luck, bringing good luck and success. We can look at Yang Chaoyue from a different perspective. From the literal meaning, Koi referred to a carp with good luck. However, the meaning behind this setting is worth thinking about. The good luck and success that the koi fish represented might not be just material wealth and honor, but a more comprehensive state of life. It means that a person can pick himself up after experiencing setbacks and difficulties, not giving up hope and bravely facing the challenges of the future. The good luck and success that koi represented could also be understood as a positive attitude towards life. In the face of all kinds of challenges and difficulties in life, one should not give up easily. Instead, one should maintain an optimistic and positive attitude and believe that one can overcome difficulties and realize one's dreams and goals. In short, we can look at the matter of koi being called koi from different angles. It represented both good luck and success, as well as a positive attitude towards life. Whether in real life or in a novel, having such a positive attitude can bring us more good luck and success.