A central theme of "The Four Dragons" is the selflessness and sacrifice made by individuals for the greater good of the community. This theme is evident through the actions of the four dragons, who recognize the struggles of the people on Earth due to the severe drought.
The Long Dragon observes the plight of the people, saying, “How poor the people are! And they will die if it doesn’t rain soon.” This expresses their concern and empathy for the suffering citizens. When they realize that the Jade Emperor is indifferent to the people's needs, they decide to take matters into their own hands, demonstrating their willingness to act selflessly for the benefit of others. The quote from the Yellow Dragon, “I will do anything to save the people,” further emphasizes their determination to help despite the risk of punishment from the Jade Emperor.
Even after being captured and punished by the Jade Emperor, the dragons do not regret their decision to bring rain. Instead, they transform themselves into rivers—“determined to do good for the people forever”—which signifies their ultimate sacrifice for the sustenance and prosperity of the land and its people.
Through their actions, the story illustrates the importance of altruism and the idea that true heroism often comes at a cost, reinforcing the message that selfless acts can lead to enduring positive change for society.