The táltosok (shamans) are the humans who are entitled to climb up the égig érő fa and wander in the seven or nine layers of the sky.
The tree often stands on the world mountain, with its top in the sky and its roots in hell, where snakes and toads live.
[2] Slavicist Karel Horálek, studying variants of the Aarne-Thompson-Uther Index tale type ATU 302, "Ogre's Heart in the Egg", remarked that a particular Central European (in Hungary and neighbouring countries) version of this type shows the hero climbing a giant tree and arriving at a hidden upper realm.
After a series of adventures, he marries a princess of this upper realm and she gives him a set of keys, warning him never to open a certain door.
On the other hand, Karel Horálek suggested that this narrative developed as a Hungarian oikotype, with its prominent feature the tall tree and the actions that surround it.