Board Thread:Questions and Answers/@comment-9826910-20130618064245/@comment-9826910-20130622004749

MeltingCheese wrote: also, when ichi is starting up some sweet mugetsu action, aizen has that little self speech about his power and how people couldn't feel his reiatsu until he dropped it to their level and all that. Ichigo's power, once it's completely unlocked, may mirror that effect; where it's so powerful it can't be felt unless the wields chooses for it to be felt. Also, if Aizen was that powerful, his arrogance could have clouded his judgement and made him not use his full potential.