Nanyue Huairang (南岳怀让 / 南嶽懷讓 - Nanyue Huairang, posthumously honored by Tang Emperor Jingzong as Dahui Chanshi - 大慧禪師, rendered in Sanskrit as महाप्रज्ञाध्यानगुरु - Mahāprajñādhyānaguru, and in Tibetan as ཤེས་རབ་ཆེན་པོའི་བསམ་གཏན་སློབ་དཔོན། shes rab chen po'i bsam gtan slob dpon Sherap Chenpö Samten Lopön, universally revered across China, Korea, Japan, Vietnam, Taiwan, Hong Kong, and the global Buddhist world as the foremost Dharma heir of the Sixth Patriarch Huineng and the ancestral patriarch of the Linji and Guiyang houses of Chan), acclaimed throughout Tang dynasty Buddhist history during the 7th century and 8th century as the master whose famous “polishing a tile into a mirror” dialogue revolutionized East Asian contemplative pedagogy, stands as a supreme pillar of Southern Chan Buddhism. With his year of birth in 677 and his year of death in 744, Nanyue Huairang was born with the secular surname Du in Jinzhou (modern Ankang in Shaanxi Province) in northwestern China. Recognizing the pervasive reality of anicca and dukkha from early youth, he practiced fearless renunciation at age fifteen, took formal refuge in the Buddha, the Dharma, and the Sangha, entered the monastic order at Yuquan Monastery in Jingzhou under Ven. Hongjing, and received full bhikshu ordination in the Vinaya Pitaka lineage while upholding strict monastic precepts and ethical conduct.
Immersed initially in intensive study of the Vinaya Pitaka and early meditation manuals alongside his fellow student Tanran, Nanyue Huairang felt a deep existential yearning for direct awakening beyond textual rules, prompting him to journey first to Mount Song to study under Songyue Hui'an (582–709) and then southward to Nanhua Monastery at Caoxi in Guangdong Province to meet the Sixth Patriarch Huineng (638–713). Upon Nanyue Huairang's arrival at Caoxi, Huineng famously asked him, “What thing comes thus?”—a penetrating question that plunged Nanyue Huairang into eight years of intense, single-pointed meditation, mindfulness, and concentration until he experienced sudden, total awakening, returning to Huineng to declare that to speak of it as any definite thing would miss the mark entirely, whereupon Huineng confirmed his realization and prophesied that a colt would emerge from beneath his feet to trample all under heaven.
Following fifteen years of devoted attendance upon Huineng at Nanhua Monastery, Nanyue Huairang journeyed northward in 713 to Mount Heng (Nanyue, the Southern Sacred Peak) in Hunan Province, settling at Banruo Monastery (Prajna Monastery) and Guanyin Terrace, where he lived quietly for over three decades training a small circle of deeply dedicated disciples while avoiding imperial court fame.
At Mount Heng, Nanyue Huairang encountered the towering Sichuanese monk Mazu Daoyi (709–788), who sat cross-legged all day in rigid, striving meditation hoping to become a Buddha. Demonstrating supreme skillful means, Nanyue Huairang sat beside Mazu Daoyi and began vigorously rubbing a clay brick against a stone; when Mazu Daoyi asked why he was polishing a brick, Nanyue Huairang replied that he was polishing it to make a mirror, and when Mazu Daoyi objected that polishing a brick could never make a mirror, Nanyue Huairang pierced his delusion by asking how sitting in rigid posture could ever make a Buddha—teaching that if an ox-cart will not move, one must strike the ox (the mind) rather than the cart (the physical body), sparking Mazu Daoyi's great awakening.
Through Mazu Daoyi—his most illustrious Dharma heir—and Baizhang Huaihai (720–814), Nanyue Huairang became the direct lineal ancestor of both the Linji (Rinzai) and Guiyang schools among the Five Houses of Chan, fulfilling Huineng's prophecy as his spiritual descendants spread across China, Korea, Japan, and Vietnam.
Literarily, Nanyue Huairang's recorded dialogues, enlightenment exchanges with Huineng, and instructional encounters with Mazu Daoyi are preserved across the classic chronicles of the Chinese Tripitaka—including the Jingde Chuandeng Lu (Transmission of the Lamp, Taisho Number 2076 in the Chinese Tripitaka), the Zutang Ji (Patriarchs' Hall Collection), the Wudeng Huiyuan (Compendium of Five Lamps), and Huineng's Platform Sutra of the Sixth Patriarch (Taisho Number 2008)—alongside the foundational sutras of his lineage such as the Vajracchedika Prajnaparamita Sutra (Diamond Sutra, Taisho Number 235, corresponding to Toh Number 16 in the Tibetan Tripitaka), the Lankavatara Sutra (Taisho Number 670, corresponding to Toh Number 107), and the Prajnaparamitahrdaya Sutra (Heart Sutra, Taisho Number 251, corresponding to Toh Number 21).
Philosophically and contemplatively, Nanyue Huairang demonstrated that Buddha-nature (tathagatagarbha) is not an external object fabricated through mechanical sitting, but the innate, luminous awareness already present within every sentient being—harmonizing Nagarjuna's Madhyamaka dialectics regarding emptiness (शून्यता - śūnyatā; སྟོང་པ་ཉིད། stong pa nyid Tongpanyid) and dependent origination, Asanga and Vasubandhu's Yogacara insight into non-dual consciousness, and Maitreya's Uttaratantra Shastra (Toh Number 4024, and Taisho Number 1611). Guiding practitioners to sever attachment to the five aggregates, anatta, emptiness of self, karma, and rebirth across samsara and nirvana, Nanyue Huairang anchored every encounter in Shakyamuni Buddha's Four Noble Truths, the Noble Eightfold Path, generosity, merit, loving-kindness, compassion, equanimity, right view, non-attachment, and universal bodhicitta to extinguish the three poisons across the six realms.
Passing into final parinirvana at Banruo Monastery on Mount Heng on August 11, 744 at the age of sixty-eight amidst deep veneration from his disciples and the entire Sangha, Nanyue Huairang left an immortal contemplative legacy that shaped the entire trajectory of East Asian Chan and Zen. Revered forever across China, Korea, Japan, and Vietnam as the great master of Mount Heng, Nanyue Huairang stands alongside Bodhidharma, Huineng, Qingyuan Xingsi, Mazu Daoyi, and Linji Yixuan as a supreme guardian of the Middle Way.