I think it's a good way to serialize the self-reflection. I do a lot of self-reflection and most of it isn't really healthy - more of just a circling anxiety over various feelings. Having to write it out means I actually have to think about it and put everything somewhere in a context, which really helps. Writing is different than thinking, just like how sometimes speaking is different than thinking, and you say things you would never have come up with just in your own head.