Basic MBTI Functions

Before I get into explaining each of the individual functions, here is the foundation of both the functions and MBTI in general.

Each personality type, as we know, goes in the order of this:

• Either I or E
• Either N or S
• Either T or F
• Either J or P

However, when it comes to the functions, we have to forget about the first bulletpoint and the last bulletpoint, at least for a second. They do mean things eventually, but as the Functions (which I will now be capitalizing) basically lay the groundwork for MBTI, and neither IEJP are technically within these functions as we will be initially understanding them, we have to forget about them completely. Just focus on the middle two possible letters - NS/TF.

So. Here we are, with I(N)tuition, (S)ensing, (T)hinking, and (F)eeling. These are basically the four key ways that the brain functions, according to personality typing ideology. 

What most people are familiar with is that you’re either N or S, or you’re either F or T. This is wrong. I mean, okay, yes, an ISTJ and ISFJ are valid personality types and they are very different types of people. But that’s not to say that the ISTJ doesn’t have Feeling, or the ISFJ doesn’t have Thinking. To be a mythbuster here, the other core part of MBTI is that everyone has all of these functions. An ISTJ also has Intuition and Feeling; an ENFP also has Sensing and Thinking. And explaining that we have to understand two additional features of MBTI.

( this is not my mbti magnum opus but it's close )