Entering the middle period, Silla emphasized the importance of rituals based on Confucianism. In addition, a huge change was brought to the location or space where the rituals were practiced. In particular that the rituals resulted in the structural change of the Silla palace. Rituals also had a profound influence on the political institutional elements, which is a matter regarding Council of state affairs. With the acceptance of rituals at the end of the middle period of Silla, it is a reasonable understanding to see that the Council of state affairs was held at Chowonjeon, the building in the palace. The fact that the council also took place in the four sacred places outside the royal palace proves that the council of state affairs was held in the ritual space outside the royal palace. It would be difficult to believe that the council of state affairs took place in the areas outside of the royal capital, where the Confucian political system was implemented in space. It is noteworthy because this demonstrates that various types of the council have been held in relation to the ritual space. The first type among the council of state affairs during the middle period of Silla, is a council where the king and his servants gather together to discuss about dynastic governance. Another is one of the noble councils called Hwabeak. This is also called as Gunsin councill or the Baekgwan of state affairs regarding all the government officials. Like this, it seems that there was a noble council in which only a small number of people participated, as opposed to the enlargement of participation in the noble gatherings. A Council of Daesin can be included in such an aritocratic meeting. Council of Jaesang can be assumed as an aristocratic conference in which fewer number of nobles participate. The fact that there were many forms of council demonstrate that through these councils of state affairs, the royal authority was even more strengthened during the middle period of Silla. It is clear that the nobles who participated in those councils of state affairs would have become more bureaucratic.