Huìwēi 慧威 Early-Táng Tiāntái monk based at Zuǒxī 左溪, grand-disciple of 智顗 Zhìyǐ in the Tiāntái lineage; teacher of 玄覺 Yǒngjiā Xuánjué in the zhǐguān tradition before Xuánjué’s encounter with 惠能 Huìnéng.