Board Thread:General Discussion/@comment-4957813-20130804122629/@comment-25156716-20140709034937

The soul king is an emperor, he doesn't rule directly but commands his subjects to rule his kingdom. He is the linchpin, his existence gives power to all authority within the soul society. Without him there is no ruling class and no authority to the soul society. Basically the soul society is molded after ancient japan with noble families and an emperor as it's supreme ruler who is a figure head. Aizen doesn't dislike the soul king but the system that is in place. He finds this form of government outdated and thus fought to get rid of it.