Medicine Amongst the Maoris, in Ancient and Modern Times
The prognosis rested upon making a correct diagnosis of the afflicting demon and the "hara" or transgression which had led to the arousing of his wrath. By this knowledge the demon could be exorcised and the prognosis rendered favourable. In the case of war there was an elaborate method of taking the auguries or omens as to success or defeat, and to a lesser extent, the prognosis of disease was sought along similar lines.
Favourable dreams and omens were recognised, whilst in the prophetic utterances of the seers or "mata kite", the the recovery of the patient was often guaranteed.