Saddharma-pundari-ka‘s Tiantia thought first planted its roots in this land in the Goryeo Dynasty.
Monk Eicheon, the State Preceptor Daegak, introduced Tiantai Buddhism that derived its origin from Tiantai Zhiyi in the 6th century to unite and correct confused Buddhism of those days in the Goryeo Dynasty to be one. Tiantia thought was the new spirit of Buddhism that combines learning with practice asceticism and embraced and united all types of buddhist thought.
Tiantai Buddhism inherits the spirit of Buddhism through Zhiyi in Tiantai Mt. and Monk Eicheon, the State Preceptor Daegak, carrying on the legacy of Buddha Shakyamuni and Nagarjuna. The person who rebuilt this in Sobaeksan Mt. after modern and contemporary history is Supreme Patriarch Sangwol Wongak. Tiantai teaching and learning is based on Nagarjuna's Shunyata thought and Madhyamaka thought. Chinese Tiantai Zhiyi systematically established Five Periods and the Various divisions of teaching or doctrine in the 6th century.
Zhiyi started Tiantai Buddhism to blend severe confrontations between the various non-Zen sects of Buddhism and the Zen sect. The various non-Zen sects of Buddhism that just emphasizes educational parts and the Zen sect that emphasizes aspects of practice asceticism are the shortcut that make you take the path of Buddhism by uniting both of them to be one. In order to argue this, Tiantia Zhiyi systematically arranged teaching and learning and thought that Buddhists aim at having the belief that all Buddhas appeared in the world to make all people attain Buddhahood and ascetic persons of Sravokas, pratyeka-buddha, and Bodhisattva all become buddas through eka-buddha-yāna. There are many ways of ascetic practices to find enlightenment. However, Tiantai Buddhism sets Buddhist prayers as the major way of ascetic practices. All the persons who cultivate themselves morally or religiously and become Buddhist monks can find enlightenment by doing religious purification of Avalokitesvara Bodhisattva regardless of age or sex. Religious purification of Avalokitesvara Bodhisattva has been known as Amitābha Faith. But there is the part required for self-regulating efforts by continuing to devoting themselves with goals. Supreme Patriarch Sangwol Wongak who rebuilt Chontae Order of Korean Buddhism after liberation from Japanese rule founded Guinsa Temple and made great efforts to save all people. The 2nd Supreme Patriarch Nam Dae-chung Daejongsa and the 3rd Supreme Patriarch (Current) Kim Do-yong Daejongsa honored his wish and have achieved the present of Chontae Order of Korean Buddhism.
Supreme Patriarch Sangwol Wongak practiced saving all people through three indicators. The three indicators include Patriotic Buddhism, Living Buddhism, and Popular Buddhism. Patriotic Buddhism means solving and practicing various tasks in these ages and areas that people live with a unified force. It means to value nations, society, families, and yourselves and make great efforts for world peace as one of cosmopolitans. Living Buddhism means practicing the teachings of Buddha in life because daily life is not separated from practice asceticism. It means leading lives with positive and proactive attitudes to create good fortune, not the passive attitude to hope good luck. Therefore, you must work hard during the daytime and create good fortune diligently by chanting Buddhist prayers at night. Popular Buddhism means that the persons who cultivate themselves morally or religiously seek individual enlightenment by having the conditions for practicing asceticism like the persons who become Buddhist monks and at the same time, practice vows of saving all people.