Genghis Khan’s religion is widely speculated to be Shamanism or Tengriism, which was very likely among nomadic Mongol–Turkic tribes of Central Asia. But he was very tolerant religiously, and interested to learn philosophical and moral lessons from other religions. To do so, he consulted among others with Christian missionaries, Muslim merchants, and the Taoist monk Qiu Chuji.
Tengriism (Tengrism, Tengrianism, Tengrianizm, Tengricilik) was the major belief of the Mongols andTurkic peoples before the vast majority joined the established world religions. It focuses around the sky deityTengri (also Tangri, Tangra, Tanrı, etc.) and incorporates elements of shamanism, animism, totemism andancestor worship.
“Khukh” and “Tengri” literally mean “blue” and “sky” in Mongolian language and modern Mongolians still pray to “Munkh khukh tengri” (“eternal blue sky”). Therefore Mongolia is called as “land of Eternal Blue Sky (“Munkh khukh tengriin oron” in Mongolian). And also in modern Turkey Tengriism is sometimes called Gök Tanrı religion by some scholars. Note that the Turkish “Gök” and “Tanrı” mean the same as and sound very similar to the Mongolian “khukh” (blue) and “Tengri” (sky), respectively. Even though there is insufficient research, Tengriism is thought to heavily influence the Alevi belief system. Today, there are still a large number of Tengriist people living in inner Asia, such as the Khakas and Tuvans.
In Tengriism, the meaning of life is seen as living in harmony with the surrounding world. Tengriist believers view their existence as sustained by the eternal blue Sky, Tengri, the fertile Mother-Earth, spirit Eje, and a ruler who is regarded as the holy spirit of the Sky. Heaven, Earth, the spirits of nature and the ancestors provide every need and protect all humans. By living an upright and respectful life, a human being will keep his world in balance and maximize his personal power Wind Horse. Shamans play an important role in restoring balance when it is thrown off by disaster or spirit interference.
It is likely that Tengriism was the religion of the Huns, Eurasian Avars, early Hungarians, and of the early Bulgarswho brought it to Europe.. It is still actively practised in Sakha, Buryatia, Tuva, and Mongolia, in parallel withTibetan Buddhism and Burkhanism.