The legitimation of rule by the Mongol rulers over China and the following period is based on the relationship between Mongol rulers and Tibetan Buddhist clergy. With regard to both societies, one can assume a mutual influence. In terms of the Mongols, the relationship was about political power, while the relationship was also accompanied by cultural and religious influence on the part of Tibet and the Buddhism. By establishing the synergistic system of this relationship, the Mongols succeeded in reorientation, both historically and culturally. The Mongolian khans now assumed the role of sacred rulers. If one looks at the autochthonous system of rule and the social philosophy of the Mongols, it becomes clear that this has certain similarities with Buddhist philosophy, which means that both systems can be easily combined.