I added a little detail to my last post.
You should stop reading some stereotypical MBTI descriptions. I have developed an uncanny insight to people after learning about psychology. Types with Ti/Fe feel(as in using feeling function) what other think, while Te/Fi think what others feel. So this stupid stereotype of INFJ doesent tell you anything real.
This jung intuitively understanding people doesent seem to fit, he analyzed them throughout or used past experiences to dwell deeper into the other persons psyche.
How do you explain jung that at one point of life had an stage where he stopping listening to what his patients were telling him to a large degree and used earlier experiences to gain an insight on them. Sounds much like being heavily under the influence of Si, doesent it?
What makes you think that jung was so "psychic" in his nature?
That's certainly true, any type can be a mystic. However, the INFJ is often psychic as was the case with Carl Jung. But an INFJ such as him also creates a theory of mind that incorporates theories about psychic experiences and mysticism, and that's where you see the mysticism in his case.
"Trouble with feelings" is so vague it doesn't provide any information to work with. But it may have something to do with this:
"INFJs are concerned for people's feelings, and try to be gentle to avoid hurting anyone. They are very sensitive to conflict, and cannot tolerate it very well. Situations which are charged with conflict may drive the normally peaceful INFJ into a state of agitation or charged anger. They may tend to internalize conflict into their bodies, and experience health problems when under a lot of stress."
http://www.personalitypage.com/INFJ.html
"In the workplace, the INFJ usually shows up in areas where they can be creative and somewhat independent. They have a natural affinity for art, and many excel in the sciences, ..."
I have also looked into mystical experiences to understand the world before i got into psychology. For example the dream world of australian aboriginals, native american beliefs, buddhism, egyptians etc.
This isnt something that INFJs do only. You using an argument "INFJ is like this and that" is highly flawed, because those things fit to other types aswell, especially to INTPs. For example this theory of mind thing is far more likely to be done by an INTP than INFJ, but naturally INFJs might do that also.
About this INFJs being gentle and avoid hurting them thing, this is quite different from jung. He was not concerned about peoples feeling in general and was quite rude at times, naturally this wasnt the case with his patients, since he(like most sane people) see the vurnebility of people who have some issues with their minds.
This INFJs showing up in areas where they can be creative and somewhat independant. This is also very true with INTP and i would say it to be true more often in INTPs than INFJs, also applies often to ENTPs and other types aswell.
Ultimately there appears to be two pieces of evidence - one which is more vague, the other is more specific but instead a memory recollection of what had been said.
I suppose it'd be wrong to assume that mysticism is aligned with Ni. But in the same regard, I don't think it's fair to automatically assume that troubles with feelings automatically assume T. When in reality, there are plenty of feelers who would define themselves as having troubles with feeling. It honestly is a vague statement. What exactly does trouble with feelings mean? Expression? Conflict?
Additionally there's also the debates that constantly pop-up on these forums when Thinkers assume Feelers of not thinking. Yet feelers will constantly say otherwise... Someone characterised by thinking honestly doesn't mean much if he's not referring to functions but instead his general personality (and it does appear to be general personality rather than IENSFT) especially when he saw himself as a man of science. Overall I'm inclined to think that he's either INTP/INFJ or even ISTP on another forum, he certainly had a fair amount of problems in his childhood that would probably make typing a lot more difficult.
I'm just surprised that he did not delve deeper into what his own functions might have been, as a creator of the system.
Personality 2 being in line with humanities. Some would argue that the unconsciousness is the truer self. Isn't that what Freud believed in at least?
Trouble with feeling obviously means trouble with feeling function, definite trouble with it and being always characterized by thinking is obvious T dom F inferior. You are forgetting the fact(which i already mentioned on this topic, but you conveniently ignored it) that he chose his words very carefully and said that this is all the neccesary info to determine his type. Also he said that its a very painful question to him, so he naturally didnt want everyone to view him as some type, but worded his answer so that people who already are somewhat educated on the system can understand him, typical INTP response.