From a F function perspective I figure to forgive is to give of the self as prior transgression perceived. Or maybe it is also a function of temperament and cognitive functions or perhaps it is a combination of all three and one more that is led by the Egoic Mind the selfs own personal Ethos.
Some times things work in fours and part of working in fours could require input from four perspectives from a universal view provided by the subtype level of minds operations.
Note that there are four uses of each of the nine numbers in the overall sequence that is a working template for or persons within there own inner enneagram:
9w1 , 1w9 , 1w2 , 2w1 , 2w3 , 3w2 , 3w4 , 4w3 , 4w5 ,
5w4 , 5w6 , 6w5 , 6w7 , 7w6 , 7w8 , 8w7 , 8w9 , 9w8 .
Within this sequence we can see each number is utilised four times.
Then thinking what is the Egoic Mind it maybe helpful to think of these Nine Functioning Components as be implicate to a definition for defining the basic boundaries of the question what defines an Egoic mind or the Egoic minds distinct caricaturists.
Attitude Behaviour Ethos
Mood Conches Agenda
Sense Think Feel
These nine components working in unison I believe constitute what is refers to as the Egoic Mind.
The complexity naturally will require a working structure larger that nine simple words but it is a start and it is how I see or define what is an Egoic minds primary base framework starting points as a structure.
I think all nine components work equally from for each of the eighteen subtypes but the story of type will most likely manifest various repeatable patters of both similarity difference and diversity and over all synergies.
Please forgive me if I have made some small errors in logic while providing explanation, I am an INFP and I tent to error in logic when explaining things in finite detail. I think I have explained things accurately enough to be correct within my explanation of a basic Egoic Minds Constructs as actions of will expressed and experienced.