What's your opinion?

Hmm, I don't really know how to start one of these things (even tho I just did) well honestly I guess I just wanted to get other people's opinion..... Why do you think people keep diarys? I have have one and I use it to get out of my head and put everything in the book (I call my diary "The book") I use it kinda like a sealing jutsu (from Naruto) just to get it out instead of bottling it up, if that makes sense😅.