Dogen spent the winter of 1247-48 in Kamakura teaching meditation, and was in turn offered the post of abbot in a new Zen monastery being built for the warrior capital. But Dogen politely declined, perhaps believing the Salvationist sects and the syncretic Zen of Eisai were still too strong among the samurai for his pure meditation to catch hold.18 Or possibly he sensed his health was beginning to fail and he wanted to retire to his beloved mountain monastery, where the politics of Kyoto and Kamakura could not reach.
Maybe Dogen's many nights of intense meditation in heat and cold had taken their toll, or the long hours of writing and rewriting his manual of Zen had sapped his strength. In any case, his health deteriorated rapidly after Kamakura until finally, in 1253, all realized that the end was near. He appointed the faithful head monk Ejo his successor at Eihei-ji, and on the insistence of his disciples was then taken to Kyoto for medical care. However, nothing could be done, and on August 28 he said farewell, dying in the grand tradition--sitting in _zazen_.
In the long run, Dogen seems the one we should acknowledge as the true founder of Zen in Japan; pure Zen first had to be introduced before it could grow. But at the time of Dogen's death it was not at all obvious that Soto Zen, or any Zen for that matter, would ever survive to become an independent sect in Japan.19 Perhaps Dogen felt this too, for his later writings became increasingly strident in their denunciation of the Salvationist sects and the syncretic Rinzai schools. He thought of himself as above sectarianism, claiming that _zazen _was not a sect but rather an expression of pure Buddhism. And perhaps it was after all only an accident that the teacher who had taught him to meditate happened to be a member of the Ts'ao-tung school.
After Dogen's death, his small community persevered in the mountains, isolated and at first preserving his teaching. But
eventually internal disputes pulled the community apart, and the temple fell inactive for a time. Furthermore, his teaching of intensive meditation was soon diluted by the introduction of rituals from the esoteric schools of traditional Buddhism. In this new form it began to proselytize and spread outward, particularly in provincial areas, where its simplicity appealed to common folk.20 It also welcomed women, something not necessarily stressed in all the Buddhist sects. Although Soto was by this time pretty much a thing of the past in China, with the last recognized Chinese Soto master dying about a century after Dogen, the school prospered in Japan, where today it has three followers for every one of Rinzai.