Analytic introverted Feeling (Fi-A) aka The Quester in Relationships

Introverted Feeling is the dominant function for INFP and ISFP types. According to recent research by Dr. Dario Nardi, it can show up in two flavors. This post outlines the analytic introverted Feeling version.

In this post, we’ll go from the broad to the specific, starting with the function, Feeling, and then the function attitude introverted Feeling, then the flavor, analytic introverted Feeling, and finally how it shows up in relationships.

This is post #15 in a series of 16. If you’re following the series, you will note there’s some repetition, but in case this is the one and only post you follow, I want you to have all the information. So feel free to jump ahead.

My main references for this post are Carl Gustav Jung and Dr. Dario Nardi. Jung was a Swiss Psychiatrist who published his theory of psychological types in 1921, and Dario is a prolific researcher and author. He found evidence of psychological types in the neuroscience data captured by EEG assessments he’s been doing with people from all walks of life since 2006.

And in case we haven’t met, I’m Doris Füllgrabe, a certified coach with a masters in applied psychology, and I help people create happier, healthier relationships.

A few caveats before we begin, to manage expectations and again in case this is the only post you follow:

1, these posts describe the functions in their purest state. Functions rarely show up in their purest state, as they interact with other functions and your brain is really active doing multiple things at any given time, like it’s regulating your hormones and heart rate right now. So, you may not resonate with 100% of the description of this function 100% of the time, and that is normal.

2, these posts describe the function for this function type. You may not be this particular function type, which means this function may not be at the top or dominant in your consciousness. That’s ok, too, because it’s still in your system, you still have access to it, and paying attention to this function may help you recognize when it pops up out of your subconscious, so you can practice integrating it consciously.

The Feeling function is one of the two rational judging functions.

Rational, because it involves reasoning i.e. a process of reflection, and judging because it’s about making decisions.

The Feeling function helps us recognize shared values, consider other people’s feelings, and connect on personal levels.

It makes us empathic, merciful, and curious about human relationships.

It is adept at interpreting body language and tone of voice, committed to social and interpersonal responsibilities, but also relies on consensus and morality.

Dr. Linda Berens describes it this way:

“Feeling is a process of making evaluations based on what is important, where personal, interpersonal or universal values serve as guideposts. Using the cognitive process of Feeling, we engage personally with the information to decide according to the impact on people, appropriateness, harmony, likes, and dislikes. Weighing different values, considering ethical and moral issues, attending to personal and relationship goals, and having a belief in something all involve Feeling judgments.”

Moving on to the function attitude, introverted Feeling, which is the dominant function for ISFP and INFP types.

What follows are Jung’s words, and his language from 100 years ago is a little different from how we speak today. He’s quite male-centric, so uses he/him when describing all functions that aren’t Feeling types. He also uses the word “object” to describe anything and anyone outside of you, and “subject” to describe yourself, you, the person.

Like the other introverted functions, introverted feeling is also principally determined by the subjective factor. Jung says,

“it is extremely difficult to give an intellectual account of the introverted feeling process, or even an approximate description of it, although the peculiar nature of this kind of feeling is very noticeable once one has become aware of it. It seldom appears on the surface and is generally misunderstood. It is a feeling which seems to devalue the object and it therefore manifests itself for the most part negatively. it is continually seeking an mage which has no existence in reality, but which it has seen in a kind of vision. It glides unheedingly over all objects that do not fit in with its aim. It strives after inner intensity, for which the objects serve at most as a stimulus. The depth of this feeling can only be guessed — it can never be clearly grasped. it makes people silent and difficult of access; it comes out with negative judgments or assumes an air of profound indifference as a means of defense.”

I’ve quoted a long passage there, and I encourage you to read it again, because Jung gives a really rich description. But to rephrase and summarize, introverted Feeling often isn’t a verbal intellectual experience; it can be inner turmoil, difficult to describe, and you’ll know it when you feel it.

Where introverted thoughts can be discussed, introverted feelings need an artistic ability to capture their depth and complexity. And because it’s such a subjective personal thing, other people may not get it.

“devaluing the object and manifesting itself negatively” refers to the fact that reality tends to fall short of internal subjective dreams and wishes, so introverted feeling types most often feel disappointment. But even the they may not know exactly what it is that’s missing, it’s just that whatever is there is not right, or good enough.

Jung continues,

“if however the feeling is falsified by an egocentric attitude, it at once becomes unsympathetic, because it is then concerned mainly with the go. It inevitably creates the impression of sentimental self love, of trying to make itself interesting, and even of morbid self admiration.”

In other words, lying to yourself or dramatizing your feelings, like an immature person might be tempted to do to get attention, is likely to backfire.

As I’ve mentioned before, Jung attributes feeling functions to women, but there are plenty of ISFP and INFP men out there as well, so the “still waters run deep” applies to both. Jung says

“they are mostly silent, inaccessible, hard to understand; often they hide behind a childish or banal mask, and their temperament is inclined to melancholy. They neither shine nor reveal themselves. Their outward demeanor is harmonious, inconspicuous, giving an impression of pleasing repose, or of sympathetic response, with no desire to affect others, to impress, influence, or change them in any way. Although there is a constant readiness for peaceful and harmonious co-existence, strangers are shown no touch of amiability, no gleam of responsive warmth, but are met with apparent indifference or a repelling coldness. Often they are made to feel entirely superfluous. As far as possible, the feeling relationship is kept to the safe middle path, all intemperate passions being resolutely tabooed.”

Jung also says that it’s not that this type has no feeling, it’s that it’s more intensive than extensive, so more depth than breadth. They feel things more passionately and are more moved, and all of that processing happens on the inside, so they look unaffected, but a lot is happening underneath. Which as he puts it can give these types

“a sort of stifling or oppressive feeling which holds everybody around her under a spell. It gives a woman of this type a mysterious power that may prove terribly fascinating to the extraverted man, for it touches his unconscious.”

So much for the function and the function attitude, now we’re moving into the flavor.

• The analytic flavor is focused on a goal, it filters out distractions, and it looks like clarity and confidence.
• That’s not to say it’s simplistic, it considers the complexities of a situation and includes relevant variables.
• Its approach is top-down, so it’s driving the situation with a point in mind.
• People with this style like to solve problems quickly using familiar tools, and can be unaware of their own biases.
• It’s often more visual.
• It pays attention to what is being said, like facts, figures, rules, methods, and labels.
• Thinking is often literal to the specific context, and they often describe using analogies.
• In business, it’s more comfortable with hierarchy, defined roles and leadership.
• Likely careers for those with an analytical style include business, engineering, finance, law, the military, hard sciences and tech.

Dario calls the analytic introverted feeling type the Quester.

Questers pursue a singular life quest or truth.

they can look like thinking types because their aim for moral clarity means they’re applying analytical skills to deal with complex issues around their values and belief systems.

The ultimate goal is living a life of alignment and congruency, or consistency. They are dedicated to developing and nurturing a core personal identity, maybe based on an external holy book or doctrine, but mainly following their own conscience.

Dario clarifies that this singular quest doesn’t have to be moral or religious, it can also be something like sports or music or travel. They’ll say, “life’s all about this…” and mean it, so they can come across as quite narrow-minded and dedicated.

Caveats for the relationship information:

I want to remind you that all types can and do have relationships with all other types. Just like you wouldn’t hire an employee based on their type, you shouldn’t choose a partner solely based on their type either, because yes, it explains a lot, but people are much more complex than that. Still, type is the best framework I know to understand, and then bridge our differences, no matter who you’re with.

Also, to my knowledge, there is no reliable statistical research into people’s types and sexual preferences as yet, so what I suggest may or may not resonate. However, if you’d like to take part in such research, please email me.

in dating

In dating, you’re probably attracted to this type’s mysterious intensity. Depending on where they’re at in their journey towards authentic congruency, they might tell you all about their quest, and then it’s up to you to show whether you understand them, and how you might be able or excited about supporting them.

For this type, it’s important to see that their intense internal emotions have somewhere to land in a partner, who is open to also being moved and who gets what they’re going through. So if they go through the trouble of trying to express all that’s going on inside, make sure you don’t just give a simple “oh, cool” response, and immediately change the subject. Stick with it, engage with it, and even if you don’t “get it”, you can probably appreciate that it’s important to them.

They might ask you questions about your purpose and passion as well, but they might also come across as quite self involved, because their mental energy is wrapped up in trying to align everything in their life to this one goal.

in mating

In the bedroom, well, if their quest is to be the world’s best lover, you should be in for a treat. ISFP types probably need a little more sensory stimulation, so anything involving sight, smell, sound, taste, or touch, and for INFP types it might be more romantic mental foreplay.

In case they don’t have the words to express how they’d like to feel or what they’d like to do in the bedroom, you might spend some time figure out their favorite films, or plays, or poems, because again, they will have an ideal version of lovemaking in their minds that they’re trying to get to.

The challenge might be convincing them that real sex is always going to be messy and your bodies will make involuntary noises — but they don’t have to ruin the moment, because you can choose to laugh at the humanity of it all, and continue.

in relating

As partners, introverted feeling types may be private, so small groups of family and friends. They want to please their partners and for them to be happy, but they will primarily be busy with their own stuff, so they may not have as much patience or compassion for your stuff as you might like. Again, not on purpose, their brain is drawn to noodle on this one subjective personal overarching goal.

Over time, growing older and gaining maturity will help reconcile the ideal romantic image with actual reality, but they might also become a little cynical if they’re not dealing with or processing their disappointments. Communication with them is likely going to be deep and meaningful, and I wouldn’t be surprised if this type sometimes doesn’t find the words to speak but might write you a letter instead. This sharing of their precious insides is a privilege and doesn’t come easily, so if you’re in their confidence, well done. Don’t use it against them during conflict

And there you have an overview of this function and its flavor, again, a short post cannot describe all the nuances and individual idiosyncrasies — but I hope you have a better idea.

If you think you are an analytic introverted Feeling type, or have a partner of that type, I’d love to hear from you!

In addition to my own experiences and interpretations, these are the resources I quote and/or reference:

Berens, L. V. and Nardi, D. (2004) Understanding Yourself and Others, An Introduction to the Personality Type Code, p.11 https://amzn.to/3Glt53J

Jones, J. H. and Sherman, R. G. (2011) Intimacy and Type, p. 50 https://amzn.to/47NHe5k

Jung, C. G. (1976 edition) Psychological Types (The Collected Works), p.387ff https://amzn.to/46CJGuy

Nardi, D. (2023) Decode Your Personality — Go Beyond Myers-Briggs With 64 Brain-Based Subtypes, p. 355ff https://amzn.to/3GoU6mL

Thomson, L. (1998) Personality Type, An Owners Manual, p. 39ff https://amzn.to/4a3mxEy

Originally published at https://www.dorisfullgrabe.com on December 29, 2025.