All diaries/journals must be written IC. It can range from what you're feeling to a basic journal. It is up to you. They also may be written in past tense, since the character will generally be writing about something that has already happened.
Diaries are not necessary, just a little extra in case you're bored or waiting for someone to post. It is one of the few places you can double post and be in two places at once, meaning you do not need to have your character find the journal in a specific location before posting. However, the entries in the diary should coincide with what the character is doing at that moment.
The Higher Power will be reading through the diaries and will respond. Only if a response is needed.
You only need one Diary, so please do not start more than one. Extras will be deleted.
Neutral Characters
Since Neutral Characters do not have a Grimoire or a Book of Shadows, we suggest that you begin a journal which you may use in the same manner as you would a BoS or a Grimoire.