Hakuin （1685-1768）， known as the second founder of the Japanese Rinzai sect 临济宗 and after Do^gen perhaps the best known Japanese Zen master. Born in the village of Hara into a family of the Nichiren faith 日莲宗. He was at first impressed by the Lotus Sutra 法华经 and the magical power of the Nichiren formulas， but eventually lost interest in these. He began to study Zen at the age of fifteen， receiving the name of Ekaku 慧鹤. He subsequently spend many years in wandering， finally settling down at Myo^shinji 妙心寺 where he received the name of Hakuin， and began to attract disciples in large numbers. He is most important within the Rinzai tradition for the deep attention he paid to the study and revivification of ko^an 公安 practice. He also lectured extensively on numerous scriptures， including the Diamond Sutra 金刚经 and Vimalakirti Sutra 维摩经. He furthermore distinguished himself as a painter and poet， and was known for his tireless efforts in working together with the common people. Most important of his disciples were To^rei， Suio^， and Gazan. Among his works are the Keiso^ dokuzui 荆丛毒蕊， Kaian kokugo， Hakuin ho^go 白隐法语， and the Sendai kimon.