Where Zen comes from
Zen began as Chan, the Chinese school of Buddhism that formed when Indian meditation practice met Taoist sensibility somewhere around the 6th century. Tradition credits the monk Bodhidharma with bringing it to China; history credits the meeting of two cultures. The Sanskrit dhyana (meditation) became the Chinese chan, which became the Japanese zen. The name is the whole curriculum: this is the meditation school.
What made Chan distinct was its suspicion of its own scriptures. A famous four-line summary calls it a special transmission outside the teachings, not founded on words, pointing directly at the mind. Buddhism had libraries; Chan kept them, then told students the books wouldn't do it.
What zazen is
The core practice is zazen, seated meditation. You sit, keep the spine tall, let the eyes rest half-open, and attend to the breath, or to nothing in particular. That's the entire instruction, which is why it's so hard. The mind produces plans, grievances, and grocery lists; you notice, and return. In Soto Zen this bare sitting even has a name, shikantaza, "just sitting," and is treated not as a means to enlightenment but as the expression of it.
Rinzai and Soto
Japanese Zen survives in two main streams. Rinzai works with koans, the famous unanswerable questions, under pressure from a teacher, and aims at sudden breakthrough. Soto, brought to Japan by the philosopher-monk Dogen in the 13th century, distrusts the chase and sits instead. A useful caricature: Rinzai climbs the mountain; Soto insists you were standing on it the whole time. (For the koan tradition itself, our guide to koans goes deeper.)
Why it isn't just relaxation
Zen practice is frequently calming, but calm is a side effect, the way fitness is a side effect of walking to work. The aim is seeing your experience directly, before the commentary starts. Masters compared the untrained mind to a waterfall of thought mistaken for a self. Sitting doesn't stop the waterfall; it introduces you.
Trying it, and reading more
Five minutes counts. Sit, breathe, return. Our beginner meditation guide gives the full method, and Zen Buddhism for beginners maps the five books worth reading first, Shunryu Suzuki's Zen Mind, Beginner's Mind above all. For the daily version, 365 Days of Zen distills 1,500 years of the tradition into one master's teaching per page, and the free daily Zen email delivers the same habit to your inbox each morning.
Common questions
What does Zen literally mean?
It's the Japanese pronunciation of the Chinese chan, which transliterates the Sanskrit dhyana: meditation. Zen is simply 'the meditation school' of Buddhism.
Is Zen a religion or a practice?
Both, depending on the practitioner. It has temples, priests, and rituals, but its core export is a practice (zazen) that people of any background use without adopting the theology.
What's the difference between Rinzai and Soto Zen?
Rinzai emphasizes koan work and sudden insight; Soto emphasizes shikantaza, just sitting, with Dogen's view that practice itself is the goal rather than a route to it.
Do I need a teacher to practice Zen?
To sit for five minutes a day, no. For serious koan work or long retreats, the tradition insists on one, mostly to stop you from grading your own homework.