However, Ulgen has a special function that Kudai does not have. He is the creator of fire and the lord of thunder, lightning, and hail, which the Altaians call “God's spits.” This in a certain way brings Ulgen closer to the pleiad of thunder gods (Perun, Indra, Zeus), the veneration of which is characteristic, first of all, of Indo-European peoples.
In the early to mid-20th century, ethnographers recorded many texts of Altai shamans' rites to the deity Ulgen. Among other things, they indicate that Ulgen lives in the sky in a golden palace, the way to which lies through seven (or nine) barriers. Shamans have for centuries offered blood sacrifices to Ulgen, usually a three-year-old white mare; the ritual was performed after three, six, nine or twelve years in large crowds. Together with Ulgen in the sky live his sons and daughters, and the sons of Ulgen, as well as the sons of Erlik, were the protectors of the Altai clans, they were offered the same sacrifices as Ulgen.