again with the "what happened to the 4th" theories?
I think that the jutsu transfers souls from the victim to the caster (or target), and from the caster to deathgod, thereby killing both the enemy's body and taking away the caster. but in Naruto's case, since the 9 tails is uber immortal and would simply respawn if you take him out, yodaime decided to seal him into a little baby, to grant the village atleast a few more years of security from the demon.

yay - 1400 posts!