The Slavic Realm of the Dead

Nav, also rendered Navь, is the term used across Slavic languages for the realm of the dead in pre-Christian Slavic religion, and it survives today primarily through linguistic and folkloric traces rather than a single coherent surviving mythological text, since unlike Norse or Greek tradition, Slavic pagan belief was never systematically written down by its own practitioners before Christianisation and has to be reconstructed from scattered chronicle references, folk custom, and comparative linguistics.

The word gave rise to nav or navka, a Slavic folk term for the restless or unclean dead, particularly children who died unbaptised or before their time, echoing a pattern found across many cultures in which an incomplete or improper death produces a specifically dangerous category of spirit distinct from the ordinary, properly settled ancestral dead. Slavic folk custom developed specific protective and memorial practices around the concept, including rites intended to keep the nav dead content and separate from the living, particularly around certain points in the agricultural and ritual calendar when the boundary between worlds was considered thin, a pattern broadly comparable to the Celtic Samhain and the Chinese Ghost Festival even though the specific Slavic customs developed independently.