How was the North Star connected to the sky in Finno-Ugric cosmology?

In Finno-Ugric cosmology, the North Star serves as the central point of the celestial canopy, functioning as an axis upon which the sky rotates.1

Among Finnic peoples, this concept was often visualized through the metaphor of a nail—known in Estonian folklore as the põhjanael—affixed to the bottom of the sky, which was imagined as an upturned cauldron. This celestial nail allowed the heavens to turn as if on an axis. More broadly, this central point was frequently associated with other cosmographic elements, such as a world pillar, a world mountain, or a world tree that supported the firmament at the center of the earth.21