[FN#68] Zen was first introduced into Japan by Do sha (629-700) as early as 653-656, at the time when the Fifth Patriarch just entered his patriarchal career. Do-sho went over to China in 653, and met with Huen Tsang, the celebrated and great scholar, who taught him the doctrine of the Dharma-laksana. It was Huen Tsang who advised Do-sho to study Zen under Hwui Man (E-man). After returning home, he built a Meditation Hall for the purpose of practising Zen in the Gan-go monastery, Nara. Thus Zen was first transplanted into Japan by Do-sho, but it took no root in the soil at that time. Next a Chinese Zen teacher, I Kung (Gi-ku), came over to Japan in about 810, and under his instruction the Empress Danrin, a most enthusiastic Buddhist, was enlightened. She erected a monastery named Dan-rin-ji, and appointed I Kung the abbot of it for the sake of propagating the faith. It being of no purpose, however, I Kung went back to China after some years. Thirdly, Kaku-a in 1171 went over to China, where he studied Zen under Fuh Hai (Buk-kai), who belonged to the Yang Ki (Yo-gi) school, and came home after three years. Being questioned by the Emperor Taka-kura (1169-1180) about the doctrine of Zen, he uttered no word, but took up a flute and played on it. But his first note was too high to be caught by the ordinary ear, and was gone without producing any echo in the court nor in society at large. [FN#69] The three divisions of the Buddhist canon, viz.: (1) Sutra-pitaka, or a collection of doctrinal books. (2) Vinaya-pitaka, or a collection of works on discipline. (3) Abhidharma-pitaka, or a collection of philosophical and expository works. [FN#70] The great monastery erected in 788 by Sai-cho (767-822), the founder of the Japanese Ten Dai Sect, known as Den Gyo Dai Shi. After visiting holy places and great monasteries, he came home, bringing with him over thirty different books on the doctrine of the Ten-Dai Sect.[FN#71] This, instead of quenching, added fuel to his burning desire for adventurous travel abroad. So he crossed the sea over again in 1187, this time intending to make pilgrimage to India; and no one can tell what might have been the result if the Chinese authorities did not forbid him to cross the border. Thereon he turned his attention to the study of Zen, and after five years' discipline succeeded in getting sanction for his spiritual attainment by the Hu Ngan (Kio-an), a noted master of the Rin Zai school, the then abbot of the monastery of Tien Tung Shan (Ten-do-san). His active propaganda of Zen was commenced soon after his return in 1191 with splendid success at a newly built temple[FN#72] in the province of Chiku-zen. In 1202 Yori-iye, the Shogun, or the real governor of the State at that time, erected the monastery of Ken-nin-ji in the city of Kyo-to, and invited him to proceed to the metropolis. Accordingly he settled himself down in that temple, and taught Zen with his characteristic activity.