He did n't see the need to go on ; Hakkai was smart enough to know which battle he meant -- the one that had left him wrapped in bandages for weeks . Hakkai stared blankly into the darkness as he swallowed that bit of information . Was it triggered by the head injury , perhaps ?
According to the above context, answer the following question.
Why is Hakkai feeling some mental fuzziness ?


Hakkai is experiencing a concussion .