1, is the five colors of vegetables boiled into soup. The so-called five colors, that is, green, red, yellow, white, black five kinds of vegetables, green for white radish leaves, red for carrots, yellow for burdock, white for white radish, black for shiitake mushrooms, respectively, representing the five elements of gold, wood, water, fire and earth.
2, it is said to be in line with the Chinese medicine that the five elements of the five elements of the body corresponding to the theory of the five viscera and six bowels: black food tonic kidneys, white food tonic lungs, green food tonic liver, red food tonic blood, yellow food tonic spleen and stomach.