User blog comment:GinIchimaru/Hogyoku-Possibilities now/@comment-452405-20100427012110

Damn it I've got a theory on the Hogyoku, it's just I can never seem to word it right, ummmm I hope this sounds right.

The hogyoku has a concious, Aizen only learnt of it's ability to make desires reality when he merged with it. Maybe with the hogyoku being concious it may have a sense of right and wrong (being with Urahara for so long maybe he learnt of it's nature and taught it about that stuff, maybe). This being the case when Aizen merged with it, it may be feeding Aizen information that'll only make him more enthusiastic to use it.

The stuff coming off Aizen looks kinda like the hollow mask stuff that came outta Shinji and the others (though there isn't really anything else to compare it with and its coming from the chest) so my thinking is the hogyoku is making all these events make sense (i.e Aizen's reasoning for everyones "miracles") while planning to destroy his soul from the inside or damage him in some way.

Random I know, but you never know with Bleach.