I also think the LSE Ni polr section is interesting. I don't agree w some parts--like others have said, the explosive anger is probably more like an LSE 8 thing--but I think the idea of Ni polr as the inability to see the inner state as changeable by one's own will is interesting/possibly the right way to think of it/a conceptualization I hadn't seen before. I don't see a lot of the things that people usually claim are Ni polr in my LSE 3 friend, like being really nervous about time and wanting to overplan things or whatever.
But I do think he is very inflexible in regards to his inner state. We are both at an anxiety-ridden stage of our graduate program. I quickly came to the conclusion that our anxieties are not productive & that we should simply try to manage them/find peace and keep plugging along in our work. So things like meditation would be useful, or at least realizing that it's not the end of the world if we don't end up w our first choice jobs. After realizing this, I calmed down a lot and began having a much better time. He took a while longer to realize this, and I don't know if he realized it on his own or through the many conversations we had about his sources of stress, how they're not productive to wallow in, and what to do instead, but he did eventually realize this, and I think he's doing better. Now when his stress sources pop up, he does things to distract himself from them. <___>