As the saying goes: "The flood washed away the Dragon King Temple", is this a satire on the other party or on oneself?

The flood washed away the Dragon King Temple. This is a very interesting saying. It comes from the book "Three Heroes and Five Righteousness". This idiom probably means that people in one's own family have various misunderstandings and conflicts because they don't know each other. There is a legend about this saying, which tells a story about the Dragon King Temple.

A long time ago, there was a Dragon King Temple on the east coast. There was a vegetable field not far from the Dragon King Temple, and the vegetable field was next to a temple. The old monk in the temple and the old vegetable grower were good friends. They often played chess and chatted together. On this day, when they were chatting, the old man mysteriously said to the old monk, "Abbott, there is a strange thing. I used to carry water for my vegetable garden. But starting from yesterday, when I went to water the garden, I found that The vegetable garden has been watered, but I don’t know who watered it. Do you think it’s strange?” The monk felt strange after hearing this, so he decided to go and see for himself.

That night, the old monk came to the vegetable garden and hid beside the well. After staring at the mouth of the well all night, just before dawn, I heard a "click", a white light shot out of the well, and a dragon-like monster flew out. He only splashed twice, and the well water overflowed a lot. In the blink of an eye, the monster jumped into the well again. When the monk came to the well to take a look, all the vegetables had been poured. It was like this for several nights in a row.

The old monk had practiced martial arts. A few nights later, he brought his sword and stabbed the monster. Suddenly, the mouth of the well exploded, the water rolled, and the Dragon King Temple was submerged. The dragon king was furious and led his people to fight the monster. After fighting for three days and three nights, the monster could not be defeated and its true colors were revealed. It turned out that he was the third prince of the Dragon King. He was banished from the East China Sea and suffered three years of punishment for breaking the laws. When fighting the Dragon King, he did not dare to reveal the secret, causing a misunderstanding. Later, when people talked about this incident, they all said the following saying: "The flood washed away the Dragon King Temple, and one's own family beat one's own family."