Muso Soseki "Magnificent Peak"

Today’s poem is by Musō Soseki (夢窓 疎石, 1275 – October 20, 1351), a Rinzai Zen Buddhist monk and teacher, and a calligraphist, poet and garden designer. The most famous monk of his time, he is also known as Musō Kokushi (夢窓国師, "national [Zen] teacher Musō"), an honorific conferred on him by Emperor Go-Daigo.[1] His mother was the daughter of Hōjō Masamura (1264–1268), seventh Shikken (regent) of the Kamakura shogunate.

—Bio via Wikipedia