What is "shiwu"

Shiwu (石屋, Wade–Giles: Shih-Wu) or Stonehouse (1272–1352) was a Chinese Chan poet and hermit who lived during the Yuan Dynasty. Shiwu was born in the town of Changshu. Taking his name from the Shihwutung (Stonehouse cave) in Yushan. In 1292 Shiwu became a novice at Yushan's Hsingfu temple, a major monastic center at the time. He studied under master Yung-Wei and three years later was ordained and received the dharma name Ch'ing-hung.