cool isn't it? the swords of the two brothers given to them by their father...Tetsusaiga and Tensaiga....one can kill 100 demons in one swipe while the other can save 100 people with one swing. the swords of heaven and earth...hell is sounga...(which is in the 3rd movie...go watch!! XD) isn't it ironic that the sword of heaven is given to Sesshoumaru who is the least likely person to want to save 100 people?? ^.^