Dogen Zenji

He came from a noble family and he quickly learned the meaning of the Buddhist word "mujo" (impermanence). His parents died when he was still young, and it is said that this early glimpse of impermanence inspired him to become a monk. He went first to Mt. Hiei[?], which was the headquarters of the sect he studied. In his young age, he questioned that "Both the esoteric and external doctrines of the Buddha teach that enlightenment is inherent in all beings from the outset. If this is so, why do all the Buddhas, past, present, and future, seek enlightenment?" This doubt led him to study Buddhism under the Rinzai teachers Eisai[?] (1141-1215) and under Myozen[?] for nine years.

In search of the truth, he went to China accompanied by his teacher, Myozen[?], at the age of 24, while voyage across the ocean was dangerous in that time. After visiting well-known monasteries, he came to study with Ju-tsing[?] (J. Nyojo), the 13th Patriarch in Mt. Tien-tung[?] (J. Tendo). This lineage would become known as the Soto school in Japanese. Two years after, he finally realized liberation of body and mind, free from ego.

Dogen came back to Japan after four years abroad. In 1244 he established Eihei-ji[?], the main Soto monastery, in Echizen[?], now Fukui[?] to spread his Buddhist religion. The temple is still one of the two head temples of the Soto sect today. He spent about 10 years for teaching in there. His masterpiece is the Shobogenzo[?], a collection of essays on Buddhadharma[?] in 95 chapters, that reveals his thoughts and faith. He employed Japanese language to write, which was unconventional in that time, and put down the point in simple, logical and concise style. He was followed by Keizan[?] (1268-1325), who popularized Soto Zen.

See Soto for the detail of the sect.

Reference About Dogen Zenji (http://www.zenki.com/AboutDogen.htm)