What does it mean to return to the market?

Returning to the ruins is also called "returning to the air". Legend has it that it is a bottomless valley in the sea, where many currents meet. Liezi Tang Wen: "To the east of the Bohai Sea, there are valleys for hundreds of millions of miles, but there is no bottom, which is called virtual." Zhang Zhan's note: "Go back to the market, or go back to the pond." Li Ming Dongyang's poem "Early Suburbs Divide the South China Sea" says: "There is a spiritual place under the void, and there is economic merit in the wide benefit." Refers to the end and destination of things. According to ancient myths, the rivers in the world and the universe, even the water in the milky way in the sky, finally converge into this primitive and mysterious bottomless pit. However, the supernatural water in Gui Xu is not increasing at all, because it is the heart link between the upper universe (the residence of Emperor Xiang and Emperor Tian) and the middle universe (the earth) in the dual world view of ancient wizards. Here, the metaphysical world where Emperor lives is real, but the metaphysical world is illusory. If truth and illusion are opposite, the metaphysical world is illusory, and the truth and ancient meaning are illusory. Guigui and Kunlun are located in the east and west of the Central Plains respectively. This sharp contrast is really amazing. Their symbolism is not fully understood today. In fact, most of the explanations focused on topography, not from the perspective of China's ancient primitive soul.