It is the mother who keeps harmony between father and child, and between brothers and sisters. In poverty she has the care of the money; in sickness the burden fails upon her. She is the center of the pain of the house. It is her part to keep the family in friendship with the outside world, in sympathy with neighbors; to welcome strangers, and to receive visitors with a smile. Mohammed says, "Heaven lies at the feet of the mother." Upon her constancy and endurance depends the unity of the home, which is the unit of the State.