Torngarsuk is described across Greenlandic and wider Inuit tradition as a powerful spirit particularly associated with hunters and with the angakkuq, the shaman, standing as the foremost or chief among the tornait, the class of helping and guardian spirits an angakkuq might call on for power, protection or insight during ritual practice.
Traditional accounts describe Torngarsuk as dwelling in a hidden or otherworldly location, sometimes beneath the earth or the sea, and as a source of the specific spiritual power an aspiring shaman needed to acquire in order to practice effectively, making a relationship with Torngarsuk or with spirits under his authority an important, sometimes central, part of an angakkuq's own initiation and ongoing practice. His name and precise role vary somewhat across the different Inuit and Greenlandic communities that recorded accounts of him, consistent with the broader regional diversity found throughout Inuit religious tradition, though his core association with hunting power and shamanic helping spirits recurs with reasonable consistency across the sources.