Quote Originally Posted by mclane View Post
And it matches socionics well, because it also has four elements that correspond to the four dimensions of a person. These are equivalent:

Heart: Ethics
Head: Logic
Gut: Sensing
Intuition: Soul

There are always 4 elements, that is the pattern.
Carl Jung describes four psychological functions that are capable of becoming applicable psychically, but to differing degrees in individuals:[131]


Sensation – all perceptions by means of the sense organs
Intuition – perception by way of the unconscious, or perception of unconscious events
Thinking (in socionics, Logic) – judgement of information based on reason
Feeling (in socionics, Ethics) – judgement of information based on sentiment


In addition to these four types, Jung defines a polarity between introverted and extraverted personalities. This distinction is based on how people invest energy: either into the inner, subjective, psychical world (usually called Seele, soul, by Jung), or toward their outer, objective, physical world (including one's body).

https://en.wikipedia.org/wiki/Socionics#History
The "soul" is pretty much missing in socionics theory. The above is the closest you get to it.. Numerology on the other hand has the soul's urge. Not to be confused with the soul though.

What does soul mean to you?