Yü-ch’üan-ssu [玉泉寺] (PY Yuquansi; Gyokusen-ji): A temple founded in 592 by T’ien-t’ai in his home region of Ching-chou, China. At this temple, T’ien-t’ai delivered lectures that were later compiled as The Profound Meaning of the Lotus Sutra and Great Concentration and Insight by his disciple Chang-an.