What Seon is
Seon is the Korean name for the meditation school of Mahayana Buddhism known as Chan in China, Zen in Japan and Thien in Vietnam. All of these words are different renderings of the same Sanskrit term, dhyana, meaning meditative absorption. Seon is the dominant tradition within the Jogye Order, the largest Buddhist order in modern Korea, though Korean temples also keep devotional, chanting and scholastic practices alongside it.
The origins of the Chan family in China are themselves debated. Traditional accounts connect it with the legendary monk Bodhidharma, while historians trace a gradual development over several centuries, so Chan Buddhism origins are better described as a process than as one founding moment. Seon should be understood in that wider story, rather than as a simple copy of either its Chinese or Japanese relatives.
How Seon came to Korea
According to tradition, Seon teachings reached Korea during the Silla period, with Korean monks travelling to Tang China, studying under Chan teachers and returning home. In the late Silla and early Goryeo periods, a number of Seon communities formed on mountain sites. They are traditionally grouped as the “Nine Mountains” schools. Details of names, dates and the individual founders vary between sources, and the account should be treated as a general outline.
One figure whose name appears in nearly every history is Jinul, a Goryeo monk of the twelfth to early thirteenth century, who is associated with Songgwangsa and with efforts to reconcile meditation with doctrinal study. His approach, often summarised as the idea that sudden insight should be followed by gradual cultivation, is still widely discussed in Korea. Later monks such as Taego Bou and Hyujeong are also remembered for shaping Korean practice.
The hwadu method
The practice most strongly associated with Korean Seon is called ganhwa Seon, meditation that works with a hwadu (in Chinese, huatou), meaning “critical phrase” or “head of the word”. A hwadu is a short phrase or question taken from the records of earlier teachers. It is held in the mind with sustained, questioning attention, rather than being answered intellectually. Well-known examples are often quoted, though teachers differ on which to use and how.
It is important to say that this is a brief, general description. Seon is traditionally taught by a teacher to a student, and written summaries cannot replace that. Instruction in such practice is private to the community and is not described here in detail. The wider picture of meditation practice in Buddhism includes many other methods, such as breath awareness, and Seon’s approach is one among several.
Retreat seasons
Korean monastic life is organised around two long retreats each year. The summer retreat (haango) and winter retreat (dongango) each last three months. The traditional dates are around the middle of the fourth lunar month to the middle of the seventh for summer, and from around the middle of the tenth lunar month to the middle of the first for winter. These dates are approximations, and temples set their own timetable.
During these periods, monks and nuns who participate stay in the temple grounds and devote most of the day to sitting meditation, with limited speech and few outside activities. The remaining six months, the “open” periods, are traditionally used for travel, study, work and visiting teachers. The summer retreat reflects an old Indian custom of staying in one place during the rains, which was later carried across Asia in various forms. In Korea, the tradition developed as a full-time meditative season.
Retreat dates are linked with ceremonies of entering and leaving the retreat. The ending of a retreat is an occasion for community gatherings, while the opening period usually restricts visitors. Check each temple’s announcements, since dates and access change.
The meditation hall
The Seon hall (seonbang) is a quiet building where monastics sit for long periods, usually facing the wall or lowering the gaze. A senior monk may walk the room with a flat stick, offering a reminder to those whose posture or attention slips. Outsiders are normally not admitted, and the discipline of the hall depends on silence, so the rule against entering is a matter of respect, not secrecy. Walking meditation sometimes alternates with sitting.
Joining a retreat as a lay person
Some temples offer short meditation programmes for the public, generally in the form of a day or a weekend, and many include a taste of Seon sitting with simple guidance. They differ from the monastic retreats and are meant to be accessible to people with no background. Longer lay retreats exist at some centres, often with language support for visitors from abroad. Anyone with health concerns, especially those related to long periods of sitting or to mental health, should speak to a qualified professional before joining an intensive programme, because sustained meditation can be demanding. This article does not provide medical advice.
For overnight experiences generally, see what a Korean temple stay includes. For the broader picture, Seon sits alongside the other major Buddhist traditions, each with its own approach to practice.