In 1889 he held a lecture on Seon meditation at Bonginsa 奉仁寺 at the request of Hwanong Hwanjin (幻翁喚眞; 1824–1904). Yuhyeong, however, became ill after his trip to Bonginsa, so he entrusted his robe and bowl to his disciple Seoryu Cheomyeong (雪乳處明; 1858–1903) and retired to Sorimgul 小林窟 where he passed away shortly after on August 29, 1889.
He led a productive career and left many writings such as the Haejeongnok 楷正錄, Tongbangjeong'an 通方正眼, Seonwon soryu 禪源溯流, Seoldusi jip, Sagi 私記, and others. Seonwon soryu was written as a response to Choui Uisun (草衣意恂; 1786–1866) and Udam Honggi (優曇洪基; 1822–1881) as a critique of Baekpa Geungseonʼs influential text, Seonmun sugyeong 禪門手鏡.