The Wuzhen pian (Chinese: 悟真篇; pinyin: Wùzhēn piān; Wade–Giles: Wu-chen p'ien; lit. 'Folios on Awakening to Reality/Perfection') is a 1075 Taoist classic on Neidan-style internal alchemy. Its author Zhang Boduan (張伯端; 987?–1082) was a Song dynasty scholar of the Three teachings (Confucianism, Taoism, and Buddhism).