Within Zen, scriptural texts are treated as valuable yet fundamentally secondary to direct meditative realization. They are likened to a finger pointing at the moon: indispensable for indicating the direction of awakening, but never to be mistaken for the moon itself. Sutras and recorded sayings provide a doctrinal and practical framework—teachings on emptiness, non-self, Buddha-nature, and non-attachment—that help prevent meditation from drifting into mere personal psychology or vague introspection. At the same time, heavy reliance on conceptual study is seen as potentially obstructive, because it can foster attachment to ideas rather than insight.

Zen therefore employs scripture in a distinctly instrumental way, as skillful means rather than final authority. Classical sutras such as the Heart Sutra and Diamond Sutra are chanted and studied, not for scholastic mastery, but to illuminate the nature of emptiness and to support the letting go of clinging. Koans and encounter dialogues, preserved in collections and recorded sayings, function as a kind of “living scripture”: they are not simply read but wrestled with in meditation, serving as catalysts that test and reveal a practitioner’s understanding. These texts are performative, meant to be enacted in practice rather than merely analyzed.

The well-known Zen slogans—“a special transmission outside the scriptures” and “not relying on words and letters”—do not reject scripture outright, but warn against mistaking verbal formulations for awakening itself. Even powerful teachings, if grasped as fixed doctrines, become obstacles; hence the radical admonitions about not clinging even to the Buddha or to written teachings. In actual practice, many Zen communities integrate sutra chanting, limited study, and engagement with koans alongside zazen, allowing scripture to offer orientation and inspiration while insisting that genuine understanding must be verified in direct experience. In this way, scripture in Zen is honored as a guide and a pointer, yet consistently subordinated to the transformative insight that arises in living practice.