The idea was that there should be harmony between two: both Deva, or both Rakshasa; thus kind to kind, wise to wise, cruel to cruel, foolish to foolish. While it was thought there should be harmony between mates of classes near to each other, that is to say between Deva, divine man, and Manusha, human man, or between Manusha and Rakshasa, it was believed there was little chance of harmony between Deva and Rakshasa, that is between divine and monster man; and that either the finer nature would be dragged down and ruined by the grosser, or else the grosser nature would be destroyed by the finer nature. The third person, the Brahmin, with the excuse of reading the horoscopes, could make every enquiry about character, and was thus able to place the man and woman in their rightful categories as he observed them, and so give warning, and possibly avert future disaster.