Gudo Toshoku

Gudō Tōshoku (愚堂東寔, 1577–1661) was the most important Rinzai master of the early Edo period and the principal architect of the seventeenth-century *Ōtōkan* revival that preceded Hakuin's later reforms^[1]. He served three terms as abbot of Myōshin-ji and re-asserted the line's *Rinka* (forest, in-mountain) self-understanding against the Tokugawa state's pressure to integrate Zen temples into the parish-registration (*danka*) system^[2].

Gudō's principal Dharma heir Shidō Bunan in turn taught Shōju Rōjin (Dōkyō Etan), under whom Hakuin Ekaku underwent his most consequential training; so the Gudō → Bunan → Shōju → Hakuin sequence is the immediate four-generation conduit through which the rigorous-practice tradition of Myōshin-ji passed to the figure who would transform Japanese Rinzai in the eighteenth century^[3].