The rising of the day is called tide, and the rising of the night is called sunseeker. Anyone who has been to the seaside will see that the sea water has a periodic fluctuation phenomenon: at a certain moment, the sea water pushes the waves to rise rapidly and reach a climax. After a period of time, the rising sea water receded on its own, leaving a beach and low tide. This cycle will never stop.
The Book of Songs is China's first collection of poems, the beginning of China's ancient poems, and occupies an important position in the cultural history of China and even the world.