In the Yi people's long poem Meige, there is such a record. Although this statement has not been strictly demonstrated by science, it embodies an explanation of the source of life.
Scientifically, the formation of human urine requires complex physiological mechanisms such as kidney, ureter, bladder and urethra to complete the internal metabolic process of individuals. At the same time, the chemical composition of urine is extremely complex, mainly containing inorganic substances, such as trace elements such as sodium and potassium, and organic substances, such as glucose and protein.
Pangu is a character in China's ancient fairy tales, which separates heaven and earth from chaos. The explanation of reflux has not been scientifically proved, so it cannot be regarded as a scientific fact.