The Shamon, or Kam in the case of remote areas of Russia are considered descendants of the original Kam. His name was Kadylbash, Tostogosh or Kayrakan, who is said to be the first person who danced with a tambourine in hand and founder of shamanism.
The practices of these Kam are said to be connected with the Uyghur, Turkic and Mongolian origins. Every Kam has their own patron-spirit or spirit guide, and believe everyone has a doppelgänger that when one sleeps, the other walks through the world as a little flame.
If this flame doesn't return the person becomes ill so the Kam must then catch this flame into their tambourine and put it back into the ear of the ailing, and then they will recover.
There's a reason these practitioners of the ancient arts live in even more remote areas and often move around so as to not become easily found. For their practices are often strange to the outsider, and they have been massacred in the past for their practices, even among their own people.
A Kam is what the people of indigenous Russia call their special Shaman. Those for whom the wish to become Shaman burns brightly. The Kam isn't a lineage by blood, but by spirit, and can be mad or woman that inherits these gifts. Not every jam has Shaman relatives, it happens or doesn't.
"If there was something in the air, if there was something in the wind, if there was something in the trees or bushes, that could be pronounced and once was overheard by animals, let this sacred knowledge be returned to us again."
–Atharvaveda (VII 66)