The Gaddang people are an ethnic group in Philippine that has a unique set of religious beliefs and practices. In their traditional religion, the concept of Nanolay, a deity that is both the creator of all things and a culture hero, is prominent. Other deities include Dasal, who is prayed to before going into battle, and the fathers of two heroes that are Bunag, the god of the earth, and Limat, the god of the sea. 


Gaddang cosmology includes dufafa, which is the material world, and kalekay, the afterlife. In Gaddang cosmogony, the term describes the place where all living things originated, the place where Nanolay performed his acts of creation. The Gaddang have a paranoidal fear of danger due to a history of headhunting and present times ridden with disease and malnutrition. 


According to the Gaddang, the earth is made up of "man, domesticated plants, ghouls, illness, and all," and they believe in two kinds of illness. Most illness is attributed to natural causes, although they also believe that illness can be caused by evil spirits, like the bingil and aran. The Gaddang have several kinds of medium, such as the mengal and mabayan, and they perform anitu rites and other rituals related to planting, harvesting, death, warfare, sickness, or misfortune. Anitu does not refer to an ancestral spirit, but a supernatural power, and it is understood as that which is followed by all. Gaddang have an anitu rite of seven rites of passage, which can be used to cure the sick and avoid misfortune due to breach of a taboo.