In the field of mythology, the peoples of Siberia have ideas about the vertical division of the Universe: the Upper World, where the gods live, the Middle World (people, animals) and the Lower World (spirits). The upper world consists of seven heavens, the Lower one consists of seven layers of permafrost. Symbols of the Upper world — birch, eagle; Middle — pine, elk; Lower — cedar, pike. Accordingly, the world is ruled by three deities, the main one of which is the creator of the world (Torum, Num, Nom). According to mythology, Thorum created life and did not interfere with it, he lives in the Upper seventh heaven in a golden house (plague) with a silver chimney. Only the upper spirits can ascend to the Torum. Thorum created humans. According to one legend, God made a man out of sticks of tallow smeared with clay, according to another — from his saliva.
Besides, the whole world is inhabited by spirits. The Khanty and Mansi are especially revered by the spirits of the taiga tracts, the Nenets the spirit of the Ob River. The shaman was the mediator between people and spirits.
In each house there were figurines of ancestral deities. There were also common tribal places of worship, such as the island of Vaigach (among the Nenets).
The totemic beliefs of the peoples of Siberia have been preserved in the form of veneration of animals, birds, fish, amphibians and reptiles. The owner of the water is a pike, the owner of the forest (land) is a bear. The Hunts had a tradition of swearing on a bear’s paw and on a pike’s nose — this was how a man’s contract with land and water was concluded; pike and bear acted as judges of his perjury on land and on water. If a bear was killed, it was brought to the village and a Bear festival was held. However, only a "good" bear deserved an "invitation", which did not harm people and pets. The characters of people were described as the properties of animals: "slow as a spring deer", "fussy as a wagtail". There were various nicknames: Chipmunk, Deer Leg.
The traditional calendar of the peoples of Siberia is also connected with their occupations: the Ob Ugrians — with fishing and hunting, the Nenets — with reindeer husbandry. Several important holidays are highlighted in the calendar, for example, the Crow’s Day holiday (April 7), which is considered the beginning of spring in Khanty and Mansi.