Answer:
Within the conception of learning for shamans there is good and evil.
Step-by-step explanation:
The shamans were by definition "bearers of invisible arrows or magical substances", they were endowed with powerful weapons, which could be used for good as well as evil. Without his negative power, the shaman could not be a doctor, and that shaman who used his weapons only to attack enemies outside the community, had a good reputation and was considered the best servant of the community. Only when he turned against the members of his own group was he the object of hatred, distrust and, sometimes, even revenge.
The magic substance, which was the shaman's strength and that he used to care for and strengthen his clients, became a deadly weapon when he addressed an enemy.