 Na committed suicide at a shrine on Mount Kuwŏl in 1916, saying that he had guilt over his failures and was martyring himself for the sake of his religion, God and people.Leaders of the religion after Na include his successor Kim Kyohong, and An Ho-Sang.The teachings of Dangun were said by Kim in his "History of the Divine Dangun's People" to be the "sin gyo" or "divine teaching", and he said that various Korean religions, such as that of Wang Kon, were continuations of the "sin gyo", but that these beliefs had been suppressed under the Mongols, Buddhism, and Confucianism.