_No monk shall be admitted to this meditation hall unless he has an earnest desire for the Way and a strong determination not to seek fame and profit. . . . All monks in this hall should try to live in harmony with one another, just as milk blends well with water. . . . You should not walk about in the outside world; but if unavoidable, it is permissible to do so once a month. . . . Keep the supervisor of this hall informed of your whereabouts at all times. . . .Never speak ill of others nor find fault with them. . . . Never loiter in the hall. . . . Wear only robes of plain material. . . . Never enter the hall drunk with wine. . . . Never disturb the training of other monks by inviting outsiders, lay or clerical, into the hall. . . .15 _Dogen maintained this first pure Zen monastery for a decade, during which time he composed forty more sections of his classic Shobogenzo. And during this time the tree of Zen took root in Japanese soil firmly and surely. But things could not go smoothly forever. Dogen's powerful friends at court protected him as long as they could, but eventually his popularity became too much for the jealous Tendai monks on Mt. Hiei to bear. To fight their censure he appealed to the emperor, claiming (as had Eisai before him) that Zen was good for Japan. But the other schools immediately filed opposing briefs with the emperor and the court, culminating in a judiciary proceeding with distinguished clerics being convened to hear both sides. As might have been expected they ruled against Dogen, criticizing him for being obsessed with _zazen _and ignoring the sutras, etc. It probably was this political setback that persuaded him to quit the Kyoto vicinity in 1243 and move to the provinces, where he could teach in peace.16 He camped out in various small Tendai monasteries (where he wrote another twenty-nine chapters of the _Shobogenzo_) until his final temple, called Eihei-ji, or Eternal Peace, was completed in the mountains of present-day Fukui prefecture. This site became the center of Soto Zen in Japan, the principal monastery of the sect. Dogen himself was approaching elder statesmanhood, and in 1247 he was summoned to the warrior headquarters of Kamakura by none other than the most powerful man in Japan, the warrior Hojo Tokiyori. The ruler wanted to learn about Zen, and Dogen correctly perceived it would be unhealthy to refuse the invitation. The warriors in Kamakura would most likely have been familiar with the syncretic Rinzai Zen of Eisai, which focused on the use of the koan. For his own part, Dogen did not reject the koan out of hand (he left a collection of three hundred); rather he judged it a device intended to create a momentary glimpse of satori, or enlightenment, whose real value was mainly as a metaphor for the enlightenment experience--an experience he believed could be realized in full only through gradual practice.