in Afghanistan,parents feed babies butter and sugar for the first six day 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 sometime 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 celebration to symbolize family unity.