User blog comment:SilverRain/Ichigo's True Strength/@comment-11598552-20130706080157/@comment-10961564-20130725101613

hogyoku is not made of reishi but of a unique substance which has not been defined and its power is to fulfill desires.....recruiting Aizen won't give access to hogyoku as the hogyoku had rejected him so the only reason i can think of is his ability of complete hypnosis