Food can also be part of a ceremony. For example, many cultures have ceremonies to celebrate the birth of a child, and food can play a significant role un China, when a baby is one month old, families name and welcome their child in a celebration that includes giving red-colored e s to guests. In Afghanistan, parents feed babies butter and sugar for the first six days of life to symbolize cleansing. In a ceremony around 100 days after a child's birth, Japanese families symbolically "feed" the baby by putting different kinds of food to its lips, and sometimes putting a single grain of rice in its mouth. This ritual expresses their hope that the baby will never be hungry. In many cultures, round foods such as grapes, pomegranates, bread, and moon cakes are eaten at welcome celebrations to symbolize famil unity.