Hakuin Ekaku 白隱慧鶴

Hakuin Ekaku 白隱慧鶴 (1686–1769), the dominant figure in mid-Edo Japanese Rinzai 臨濟 Chán Buddhism and the principal architect of the modern Rinzai kōan 公案 curriculum. His instructional literature (e.g. Itsumadegusa 一隙草, Sokkō-roku kaien-fusetsu 息耕錄開莚普說) draws explicitly on Míng-period Chinese Chán practice anthologies, including Yúnqī Zhūhóng’s Chán guān cè jìn KR6q0101. Hakuin’s lineage descends through the Ōbaku-period Chinese transmissions and the older Rinzai houses.