Within the Korean Seon tradition, what are often called “schools” are better understood as lineages and institutional streams that share a common meditative heart. Historically, Seon first took root through the so‑called Nine Mountain Seon Schools (Gusan Seonmun), each centered on a principal mountain monastery and tracing its transmission to Chinese Chan, especially the Linji and Caodong lines. These nine—Gaji‑san, Silsang‑san, Dongni‑san, Sagul‑san, Bongnim‑san, Seongju‑san, Saja‑san, Huiyang‑san, and Sumi‑san—were founded by different masters, yet all cultivated Seon’s direct, experiential approach to mind. Over time, these currents did not remain isolated; they gradually converged and were later absorbed into broader institutional frameworks. The diversity of the Nine Mountains thus represents not competing doctrines, but multiple gateways into the same contemplative landscape.

From this historical matrix emerged the Jogye Order, which now stands as the principal Seon institution in Korea. Jogye is often described as a synthesis of the earlier mountain lineages, drawing especially on the Linji and Caodong inheritances while organizing them into a coherent system of practice and training. Its characteristic method is ganhwa Seon, the disciplined contemplation of a hwadu, or critical phrase, which serves as a catalyst for awakening. This approach, shaped by figures such as Jinul, combines rigorous meditation with doctrinal study, yet always orients both toward direct realization rather than conceptual mastery. Within Jogye, numerous Dharma lineages descend from eminent masters, but these are understood as branches of a single great tree rather than separate schools in a sectarian sense.

Alongside Jogye, the Taego Order represents another significant Seon lineage in the Korean landscape. Named after Taego Bou, a key figure in unifying Seon and doctrinal Buddhism, this order shares the same fundamental Seon orientation while differing institutionally, particularly in its acceptance of married clergy and its distinct administrative structure. Taego preserves Seon meditation, often centered on hwadu practice, and traces its roots back through many of the same historical streams that nourish Jogye. In this way, the two orders can be seen as sibling expressions of a common heritage, each embodying Seon’s emphasis on direct insight into mind‑nature while organizing communal and monastic life in its own way.