He told a very old story: There were two fish living in the sea, and they met in the lake for fun, and they gradually fell in love with each other. But one day, the water in the lake dried up, and they could only feed the foam from their own mouths to each other's mouths to moisten each other. This is called mutual support.
In order to survive, they returned to the sea. The two fish were about to separate and eventually returned to their own world without disturbing each other. This is called forgetting each other in the world.
Staying with each other is love, and forgetting each other in the world is life.
It is better to forget each other in the rivers and lakes than to help each other.