Anatta, that there is no permanent unchanging self, is affirmed across Buddhist schools, including this tradition.
Zen keeps December the eighth as Rohatsu and precedes it with the year's most demanding retreat, a week of sesshin culminating in a night of sitting through to dawn in imitation of the Buddha's vow not to rise until awakened.
Buddha-nature as already present and to be directly seen, not gradually built, is central to this tradition's teaching.
Dependent origination, that phenomena arise in dependence on conditions, is the central explanatory principle shared across Buddhist schools, including this tradition.
The formal transmission of a student's realization from teacher to teacher, outside reliance on doctrinal texts alone, is this tradition's institutional and doctrinal center.
The Diamond Sutra is especially influential in this tradition, where a Chinese printed copy of it is the earliest surviving dated printed book.
Dukkha, the unsatisfactoriness of conditioned existence and the first Noble Truth, is affirmed across Buddhist schools, including this tradition.
The Heart Sutra is chanted daily across this tradition and is its most recited scripture.
Seon is the Korean line of the same Chan and Zen family, and Jinul is its decisive medieval reformer.
Karma, action and its consequence, is affirmed as the mechanism of rebirth across Buddhist schools, including this tradition.
Kinhin is walking meditation, practised in the Zen tradition as a bridge between periods of seated meditation.
Kyudo's spiritual register also draws on Zen-inflected ideals of egoless action.
Zen sits facing a wall in Soto and facing into the room in Rinzai, upright with eyes lowered and half open, and treats the sitting itself as the expression of awakening rather than as a technique leading toward it.
Zen sits zazen, upright and still with eyes lowered and half open; Soto practises shikantaza, just sitting in open awareness, while Rinzai gives the sitter a koan to hold against the reasoning mind.
Zen carries the same attention into work, walking, eating and cleaning rather than confining it to the cushion, and its monastic forms treat every ordinary act as the practice, which is where the tradition's spare aesthetic comes from.
Nirvana, the cessation of craving and the end of rebirth, is the shared goal named across Buddhist schools, including this tradition.
Written by a lay Zen student under a named Zen teacher, and read in the standard scholarship as enacting Zen themes of impermanence and non attachment through the practice of travel, not a passing reference to the tradition.
Clergy or specialist role within Zen.
Roshi, the venerable teacher, is the senior teaching title of Japanese Zen specifically.
Samsara, the beginningless round of rebirth from which the Buddhist path seeks release, is affirmed across Buddhist schools, including this tradition.
Satori and kensho, breakthrough insight into one's own nature, name this tradition's goal of practice.
Why this is disputed. The traditional account, that Bodhidharma brought Chan from India and spent nine years facing a cave wall above the monastery before transmitting the teaching directly to his disciple, is the founding legend of the Chan lineage rather than a documented historical record. Modern scholarship on early Chan textual history treats much of Bodhidharmas biography, including the wall gazing episode and the direct line of patriarchs said to descend from him, as later legend assembled to establish the lineages authority, rather than as a reliable account of how the school actually took shape at Shaolin.
Zen bokuseki, the ink traces of monk calligraphers
Zen inherits the Chinese sudden teaching from the Southern school of Chan, though the sudden and gradual houses of that dispute are now read as a polemical construction of the eighth century rather than as two real lineages.
Emptiness, inherited from Madhyamaka and Prajnaparamita literature, underlies this tradition's approach to direct experience.
The Four Noble Truths, the Buddha's foundational diagnosis of suffering and its cure, are affirmed as the basis of the path across Buddhist schools, including this tradition.
The Noble Eightfold Path, the fourth Noble Truth's prescribed practice, structures the path across Buddhist schools, including this tradition.
Going for refuge in the Buddha, Dharma and Sangha is the formula of Buddhist identity across schools, including this tradition.
The three marks, impermanence, unsatisfactoriness and non-self, are held as characteristics of all conditioned things across Buddhist schools, including this tradition.
Zazen is Zen's whole practice rather than a preparation for it. Soto teaches shikantaza, just sitting in open awareness with nothing to attain, and treats the sitting as itself the expression of awakening; Rinzai has the sitter hold a koan.
Clergy or specialist role within Zen.