Board Thread:Questions and Answers/@comment-10797017-20130622101437/@comment-14932925-20131023222309

AldenHeathcliffe wrote: I suppose a Zanpaktou in general is supposed to be forged with a single spirit, intwined with the individual wielding it. Having a dual manifestation implies that those individuals have twin spirits or some kind of split/dual reitsu or spiritual characteristics, which is special in it's own way. Just my theory on why. Also, it's possible that the asauchi split into two when awakened in Shikai, then it's seals in two pieces.