Talk:Shinyaku Toaru Majutsu no Index Light Novel Volume 10/@comment-186.113.230.26-20140407152532/@comment-125.60.240.201-20140407155537

The usage is probably just for poetic purpose, but considering that Mimir was pretty much the wisest guy around in the mythology who gave advise as a disembodied head to the chief god of the Aesir, Mimir probably represents Touma's wisdom.