Orenda is a name for a spiritual power inherent in people and their environment. Orenda was deemed a motive force in such things as the drive behind miracles, divination, prophecy, blessing, cursing, prayer, and superstitions.
For the Iroquois a shaman was considered to be "one whose orenda is great, powerful", while a hunter's orenda determined whether he was successful in overcoming the orenda of the game. In conflicts between nations, orenda determined the outcome.
19th and 20th century scholars compared the concept of orenda to that of mana. Mana, in Austronesian languages, means "power", "effectiveness", and "prestige".