Chinese medicine believes that the heart is fire and the kidney is water. The normal state is that the heart and kidney intersect, and fire and water ji ji. Wet dream's phenomenon will occur when excessive heart fire disturbs kidney water. However, it is normal to do wet dream once a week (1 2 times), but it is too frequent, indicating that excessive heart fire will lead to pathological deficiency of kidney yin, so it is necessary to restrain desire and suppress heart fire.