J. N. B. Hewitt, an ethnologist of Tuscarora and European descent working for the Bureau of American Ethnology, introduced orenda to English-language scholarship in his 1902 paper "Orenda and a Definition of Religion," arguing that the Haudenosaunee (Iroquois) concept named a mystic potency or efficacy understood to be at work behind any notable action or phenomenon: a skilled orator's persuasive speech, a successful hunter's catch, an unusually fierce storm, or a healer's cure, each read as orenda made manifest in that particular act. Hewitt argued that orenda was not itself a deity or a system of worship but a more basic category, power at work through beings and things, and that Iroquoian ritual practice, invocation, ceremony, and careful, respectful speech, functioned largely to acknowledge, direct or draw on orenda already present rather than to create it from nothing.
Orenda was understood as unevenly distributed: certain gifted individuals, particularly orators and healers, along with certain animals and natural phenomena, were recognized as possessing it to an unusual degree, a recognition that carried real social and ceremonial weight within Haudenosaunee communities. Hewitt's own position as a Native scholar working within Western academic ethnology gave his account an unusual authority for its time, though it necessarily still passed Haudenosaunee concepts through the vocabulary and categories of early twentieth century anthropology.