Soviet linguist G. N. Prokofiev records syudbabts (sacred chants) of Nenets tadebets (shamans) in the Polar Urals and Yamal Peninsula. These incantatory poems invoke spirits of reindeer, polar bears, and ancestral land (ya'ra) using archaic Samoyedic vocabulary, onomatopoeia, and ecstatic repetition during tambourine trance rituals. The collection captures animist folklore as collectivization forcibly settles nomadic reindeer herders.

The syudbabts recordings influenced Samoyedic poets (Lyubov Nenyang, Yuri Vella) writing in Nenets, Forest Enets, and Tundra Nenets languages during post-Soviet indigenous revival movements (1990s-2000s). The chants' shamanic journey structures—where the poet's voice embodies animal and spirit others—provided models for Siberian ethnopoetics and influenced Arctic poets (Auluq Mikis) across linguistic boundaries. The collection demonstrates how shamanic trance poetry, recorded by Soviet state ethnography, becomes foundational for indigenous language poets seeking to reconstruct oral traditions after forced sedentarization, creating new written poems from fragmentary chant memories.