The courtyard is divided into two parts, the front part is used to hold important ceremonies and the back yard is used for the king's private activities. Therefore, the front yard is narrower and tall pines are grown on both side of the pathway to let people attending the events feel formalness; On the other hand, the back yard is wider to make sure the king has enough area to do various activities, in addition, the king can feel less formal and actually relax himself.