In each tribe of the Ecuadorian Amazon there is a shaman. Chosen in theory for his exceptional powers and in practice by inheritance or because he is the only one willing to assume this responsibility, apparently he is one more. He may have a family like the others, or drink chicha during parties, but at the same time he is highly respected by everyone, who goes to see him in search of natural healing potions when the traditional medicine available is not enough.
If you travel to Ecuador and have the opportunity, get a checkup with a shaman. It is an experience unlike anything else, shocking and safe