 The juice of unripe fruit is said to lower blood pressure and the fruit stem to relieve a cough.To reinforce these effects, the fruit is peeled before use, exposed to the sunlight during the day and to the dew at night, until a white powdery coating forms.A vase adorned with a "kaki" cake, a pine branch and an orange is a symbol of the desire for "great happiness in 100 affairs."