he might want to consider studying Chán in China. In 1217, two years after the death of contemporary Zen Buddhist Myōan Eisai, Dōgen went to study at Kennin-ji Temple (建仁寺), under Eisai's successor, Myōzen (明全). Travel to China In 1223, Dōgen and Myōzen undertook the dangerous passage across the East China Sea to China (Song dynasty) to study in Jing-de-si (Ching-te-ssu, 景德寺) monastery as Eisai had once done. Around the time the Mongol Empire was waging wars on the various dynasties of China. In China, Dōgen first went to the leading Chan monasteries in Zhèjiāng province. At the time, most Chan teachers based their training around the use of gōng-àn (Japanese: kōan). Though Dōgen assiduously studied the kōans, he became disenchanted with the heavy emphasis laid upon them, and wondered why the sutras were not studied more. At one point, owing to this disenchantment, Dōgen even refused Dharma transmission from a teacher. Then, in 1225, he decided to visit a master named Rújìng (如淨; J. Nyōjo), the thirteenth patriarch of the Cáodòng (J. Sōtō) lineage of Zen Buddhism, at Mount Tiāntóng's (天童山 Tiāntóngshān; J. Tendōzan) Tiāntóng temple in Níngbō. Rujing was reputed to have a style of Chan that was different from the other masters whom Dōgen had thus far encountered. In later writings, Dōgen referred to Rujing as "the Old Buddha". Additionally he affectionately described both Rujing and Myōzen as . Under Rujing, Dōgen realized liberation of body and mind upon hearing the master say, "cast off body and mind" (身心脱落 shēn xīn tuō luò). This phrase would continue to have great importance to Dōgen throughout his life, and can be found scattered throughout his writings, as—for example—in a famous section of his Genjōkōan (現成公案): Myōzen died shortly after Dōgen arrived at Mount Tiantong. In 1227, Dōgen received Dharma transmission and inka from Rujing, and remarked on how he had finally settled his "life's quest of the great matter". Return to Japan Dōgen returned to Japan in 1227 or 1228, going back to stay at Kennin-ji, where he had trained previously. Among his first actions upon returning was to write down the Fukanzazengi (普観坐禅儀; Universally Recommended Instructions for Zazen), a short text emphasizing the importance of and giving instructions for zazen (sitting meditation). However, tension soon arose as the Tendai community began taking steps to suppress both Zen and Jōdo Shinshū, the new forms of Buddhism in Japan. In