Now picture Y overlapping X. Let’s say the resources required to maintain X fall within X (function) and everything else is excess.
Financially, as an example, you may only require 85% of your income to maintain your lifestyle/sanity/capabilities etc. This is your function. Whatever you have access to that is over this amount is your excess and represents that which you can go without and not be significantly or even identifiable worse off because of.
Why does this matter? Remembering that how you respond to hunger is more important than being hungry, how we spend both function resources and excess resources need to also be independently measured. Failure to do so can too easily blur the line between edification and gratification.
As aforementioned, when gratification decreases personal capabilities it’s also decreasing your excess (as ‘function/x’ determines ‘access/y’). For this reason, when it comes to spending resources, Edification aims to ensure resources dedicated to maintain function aren’t wasted/spent on other/useless things. Edification will stop expenditure while it remains in excess and not enter into function’s resources/capabilities. This ensures that the individual can at least maintain momentum/growth.
It is much like an investor who refuses to live on any more than a portion of the interest and reinvests the rest, preserving the capital. Under this model, the individual is capable of consistent and permanent growth. When the investor is willing to put a portion of capital greater than his excess on the betting table, he risks losing that capital and therefore decreasing his future function and resulting excess.
Gratification is a willingness to spend both excess and function’s resources.