The spiritual legacy associated with Tengri, the Sky, is not gathered into a single sacred book, but is woven through a broad tapestry of oral and written traces. Among Turkic and Mongolic peoples, epic narratives, songs, and legends have long carried teachings about the structure of the cosmos, the role of Tengri, and the ethical order that binds humans to Heaven, earth, and one another. Heroic epics such as the Manas cycle and other sagas encode ideals of courage, loyalty, and harmony with the natural world, while folk tales and proverbs preserve more intimate reflections on right conduct and reverence for the living landscape. In this way, spiritual doctrine is not abstracted from life but embedded in the stories and wisdom sayings that shape communal memory.

Equally important are the ritual forms through which this worldview is enacted and transmitted. Shamanic chants, prayers, and invocations—performed by figures known in various traditions as kam, baksı, or böö—serve as living “texts” that articulate relationships with Tengri, with benevolent and malevolent spirits, and with ancestral presences. Seasonal ceremonies, offerings, and rites surrounding birth, death, and the cycles of nature function as embodied commentaries on cosmology, continually re-inscribing the sense of a world animated by sacred presence. Folk songs, laments, and lullabies, often addressed to the sky, mountains, rivers, and animals, carry subtle teachings about humility before the vastness of Heaven and the need for balance with the environment.

Alongside these living traditions stand early inscriptions and historical writings that offer more fixed, though often fragmentary, windows into this religious horizon. The Orkhon and Yenisey inscriptions, carved in ancient Turkic runes, explicitly name Tengri and speak of divine mandate, fate, and the afterlife, providing some of the earliest written attestations of this sky-centered faith. Later chronicles such as the Secret History of the Mongols, as well as Chinese, Persian, and Arabic historical accounts, describe the reverence for “Eternal Blue Heaven” and the rituals through which rulers and communities sought legitimacy and protection. Although these texts are often political or historiographical in intent, they nonetheless preserve prayers, oaths, and ritual formulas that echo older, orally transmitted teachings.

Modern ethnographic and scholarly collections have attempted to gather what remains of these currents into more systematic form. Researchers have recorded shamanic performances, myths, and ceremonial practices among Turkic and Siberian peoples, preserving songs, narratives, and ritual sequences that might otherwise have vanished. Such compilations, together with reconstructed ritual texts based on historical and oral sources, do not replace the fluid, local character of the tradition, but they do help reveal its underlying patterns: veneration of the Sky, respect for ancestral and nature spirits, and a deep sense of interdependence between human communities and the wider cosmos. Through this dispersed yet resonant body of material, the teachings associated with Tengri continue to speak of a world in which Heaven, earth, and living beings form a single, sacred order.