Religions mentioned in the Secret History

[jstampfl]

I would like to know what religions are mentioned in the Secret History of the Mongols.

I know:

Worship of heaven & earth. Chinggis Khaan would go to mountain top with belt around neck.


Shaminism. Chinggis Khaan killed a Shamin who contended with him.

[H. İhsan Erkoç]

Only the traditional cults and beliefs of the Mongol tribes are mentioned in the SHoM, such as the cults of Heaven, Earth, Edügen (earth goddess), Mountains, natural spirits and ancestral worship.