> INFP turns into an ISTJ
it's true, although when i, as a probable infp get mad and act out (very rare for enneagram nine but happens on the internet), i don't really loose my intuition, to the contrary, i surrender to it completely, this gives me enough Ni to seem more like an INTJ, than ISTJ. Ni is the demonstrative function of JiNe types, you know. it means it's available but often discarded. Ni is being like shiva in the context of anger, it's an intuitive goal orientation, i predict your demise. ISTJ has a conservative attitudes and retreats into wooden rigid perfectionism when angry, he is too "good" for conflict, INTJ has reformer attitude and becomes fire, when angry. intuition is the fire element. when i get mad, i am always in a reformer mindset. my Fi mode will peacefully suggest a better world. some trolls come along and shit on it. i kill them all, with fire. this is what my anger looks like. the only other explanation for this is that i am actually isfp. Isfp has Ni as well, but i'm not sure why it would be accessible, while he extroverts his sensation, which he surely does when in anger. extroversion of sensation limit the introversion of intuition. intuition without introversion is paranoid, when in the unconscious. the isfp would perhaps loose confidence through paranoia, instead of gaining 'shiva' confidence, when angry.
Thank you for your contribution. May I sit next to you , as member on your team (of exploring and understanding your personality to the fullest). Even though I do not know you, I sense that you already know a whole lot about MBTI and have been on the MBTI boat for quite a while. Although I could be wrong, my intuition somehow tells me you rightly know you are an INFP. But may I point out something to you, how you could slightly improve your understanding?
I noticed that you said that you think that Fi can peacefully suggest a better world. But I wanted to let you know that it is your optimistic/idealizing/utopian/possibility-seeking Ne worldview which is showing that to you. It is your Ne perception! Not your Fi action/judgement.
Fi is totally not optimistic, it is a blocking function. Even though some pink colored books describe Fi as an INFJ fairytale, I'm afraid its totally not true. Fi is a powerful enforcing function that blocks the operation of hostile ideas from "the enemy". You, as an Fi-dom, are a mighty warrior. In case Fi comes on very strong, it can block so well that can even block your Ne. This is blinding rage. It is blinding as in "no perception function" and works with action/judgement only at those "Raging" moments. However, that never lasts forever, the optimism you talk about is when you are done acting through your Fi and you look through your Ne perception function again.
To explain it intuitively, it is Fi which is the red fighting spirit and Ne which is the pure virgin white spirit of possibility. The mix is pink. Both the ENFP & INFP are in this mix.
In an ENFP the perception is always dominant and thus Fi cannot totally block perception, the ENFP can never go "blind", but is also less strong as it is not willing to go so far with Fi. In an INFP Fi is dominant and it has the ability to totally close perception (its opportunistic Ne worldview) if it feels bad enough according to Fi. It can go all the way, which makes it the mightiest warrior.
To give you more insight > What I said on top is to make sure your Fi does not block. I know your Ne will understand this, but I know that if I come on too strong your Fi might not feel right about me and block me totally, invalidating all I say. (Hope this also bit helps as well for the insight.)
P.S. As for Ni, it is not involved in rage/anger. Ni is totally emotionless, cold, and it always hides. It does not really predict someone else's demise, it is more about its own demise of which Ni is constantly paranoid and the reason the Ni-user prepares far far far ahead and why they are called far-seeing or clair-voyant. They can hear doom coming from miles away. (for example an army of Fi-users storming on the horizon to finish them off). Basically Ni sees doom, and Fi makes doom.
You as an INFP do not see doom. you are a mighty warrior that can cause doom, but if you are not, you do not see doom, you see a very optimistic/idealistic Ne perception. Sometimes Fi hurts a lot and will only let the best come through to Ne (blocking out the nasty). In that case Ne can be kept in a sort of illusion with such restrictive Fi filter, an seeing idealistic world while the rest is blocked out. Thats why the INFP is commonly called the "idealist", living in its own pink-colored world. However, this is commonly misunderstood as in Fi being some happy flower-power function, which it is not. Fi is a hardcore strong warrior nobody can mess with, or it will take them down all the way, even willing to take themselves down in the process, on which other functions will back-off to save themselves. This s the power of Fi.