Board Thread:General Discussion/@comment-26475399-20151228215405/@comment-26475399-20160102000623

Kaestal wrote: it was probably more him admitting that the two Zangetsu and Ichigo were one in the sense of one purpose, no longer fighting with each other and finally gaining inner balance and peace

That's a good way to look at it. You mean in terms of what Ichigo meant with his "For you are me" quote, right? Ichigo also says in the same chapter (542), "From here on out, I fight alone." So that's just where i get my interpretation that the spirit manifestations are "gone" basically, while their respective essence has been combined with Ichigo's soul. In handing over ownership of their powers to Ichigo, they vanished as the embodiments that they were of those very powers.

Though, this is just the way i've interpreted the "science" behind the situation, hahah.