Writings and thoughts just as the motto states. Practically anything that doesn’t fit in the other categories.
Playing with Myers-Briggs test
Psychology (as much as I like it) will never be an exact science. While tests are often useful, you have to take them with a pinch of salt. They are useful when part of a more complex view.
They can also be a bit of a fun. Have you ever tried to fill in a test as one of your characters? I did that recently and got interesting results.