Introverted, intuitive, feeling, perceiving. It's the type most often described in terms of dreaminess, which misses that the defining feature is not imagination but conviction, held privately and rarely up for negotiation.
The Four Letters
Introverted means the important activity is internal. You have a rich, continuous inner life that other people get about two percent of, and the gap between what you feel and what you say is wider here than in any other type.
Intuitive means you deal in meaning and possibility rather than in the details of the present arrangement. You're asking what something is for.
Feeling is the deciding function, and in this combination it isn't sentiment. It's a set of values, held privately, that you will not trade. You'll be flexible about almost anything else and immovable on those.
Perceiving means you stay open, resist being scheduled, and prefer to keep possibilities alive rather than close them.
Together: somebody with a strong internal compass, a lot of unexpressed interior life, and a persistent sense that things ought to be better than they are.
"Mediator," and the Trailing Letter
Mediator is 16Personalities' nickname, and Healer is another framework's. Both point at the same thing, which is that this type takes other people's pain seriously and would rather resolve a conflict than win it.
An INFP-A or INFP-T result adds a letter from a scale outside Myers-Briggs, reporting on stress rather than preference. The INFJ page explains it.
The Gap Is the Defining Problem
Every type has a characteristic difficulty, and here it's the distance between how things should be and how they are.
You'll feel it about the world, about the church, and most painfully about yourself, since your own conduct is measured against the same standard and comes up short in the same way. That gap is not a mood. It's a permanent feature of caring about how things ought to be while living somewhere they aren't.
Micah puts the requirement in terms this type can actually use.
"He has shown you, O mortal, what is good. And what does the Lord require of you? To act justly and to love mercy and to walk humbly with your God" (Micah 6:8).
Three things. Not a state of the world to be achieved, and not an ideal to be measured against. Three things to do, today, in the situation you're actually in.
That's the answer to an idealist's paralysis. The requirement is not that the gap closes. It's that you act justly in the specific case in front of you, extend mercy to the specific person, and keep walking with God while the rest of it remains unresolved.
What the Profiles Get Wrong
Two things.
The first is that quiet gets mistaken for uncommitted. The convictions here are among the firmest of any type. They simply aren't announced, and they're rarely defended in argument, so people assume a flexibility that isn't there.
The second is that INFPs get written up as fragile. What's true is that you feel things at a higher amplitude. What follows from that is not weakness: it's why you can sit with somebody in the worst month of their life without flinching, when more robust-seeming people have found reasons to be elsewhere.
Where This Type Does Its Best Work
Worth ending the description on, since the profiles rarely get to it.
What you do better than almost anybody is stay with a person who is in a bad situation that isn't going to improve soon. Most people can manage a crisis for two weeks. What defeats them is month five, when nothing has changed and there's nothing useful left to say. You can be there in month five, because you weren't there to fix it in the first place.
That is not a small ministry. Ask anyone who has been through something long.
Where the Map Runs Out
It can't tell you that leaving is the answer, though this is the type most likely to conclude it. When the gap between the church you imagine and the one you attend gets wide enough, the picture of somewhere better is always available, and it's a picture rather than a place.
And it can't be used to excuse the unsaid. A conviction nobody has heard cannot do anything for anybody.
Read On
If you're guessing your type from descriptions, take an assessment first.
Its applied companion is connecting with Jesus as an INFP, built on Jeremiah, who tried to stop speaking and found the word was like a fire shut up in his bones. The rest of the INFP material is in one place.
One practical note on how this type prays, since the standard instructions rarely fit. Structured prayer lists tend to die here within a fortnight. Writing does not. If you've never been able to sustain a prayer habit, the format is the likeliest culprit, and a notebook where you write to God in your own words, unedited and unread by anybody, is the version that usually survives.
Take the description for the map it is. Then take Micah 6:8, which is three things you can do this week without waiting for the gap to close.