The idea that an individual man or woman has been created the one for the other is found among all races at all times. It rests on common human experience. One often sees an individual, possessed of a desire to marry, who makes many friends without becoming attached to anyone; it seems as if he were groping towards his own mate who is destined for him, and cannot rest until he finds her. And again one sees two who have met many others without forming any real attachment, but who upon meeting instantly feel united, as if they had been made for each other.