Each summoner will have their own journal, set up by the mule. They're handy to post roleplay links in so that you can keep track of your RP, links to battles in the subforum (to keep track of leveling your Aeons) and if you'd like, you may do first-person roleplay in them (as though your summoner is actually keeping a journal).

There should be no interactive roleplay in the journals - consider them very personal.

Remember, do not start your own journal. It will be set up for you, and your stats for battle will be updated in a timely fashion.