The mythical stone at the center of the world in Slavic myth is Alatyr.
Alatyr is a sacred stone in East Slavic folklore, often described as the “father of all stones” and the navel of the earth. It contains sacred writing, possesses healing power, and represents a meeting point between the human world and other realms.
In the Dove Book and related spiritual verses, Alatyr is associated with Buyan, a mysterious island in the world ocean. A holy structure or cosmic tree may stand upon it, while miraculous waters flow from beneath the stone to nourish and heal the world. Some traditions describe it as white, burning, blue, or otherwise supernatural.
A common mix-up is treating Alatyr as a named weapon or the personal stone of a particular god. Those associations belong mainly to modern fantasy or reconstructed interpretations. The traditional folklore image is broader: Alatyr is a cosmic sacred stone, especially prominent in Russian and other East Slavic sources.