"We learn from the Vedic Index: "In some passages the Panis definitely appear as mythological figures , demons who withhold the cows or waters of heaven ... It is difficult to be certain who a Pani was. It is, however, hardly necessary to do more than regard the Panis generally as non-worshippers of the gods favoured by the singers; the term is wide enough to cover either the aborigines or hostile Aryan tribes as well as demons. ""