the consept is that when some one does some thing for you instead of paying them back, the little boy asked them to pay it foward to 3 other people, then those 3 would each pass it on to 3, and the numb ers would really grow. would be so nice to have this happen. just think, if every time some one did us a nice, we passed it on to three others, well it could get so out of hand we would all be so busy paying it forward we would never have enought time to be nasty and mean!! LOL