This system is ultimately not about classifying people. It is about helping them recognize their place within the Great Story.
A philosophy of human vocation told through myth
The Three StoriesOrders & Guildss Alasdair MacIntyre's After Virtue. MacIntyre's three load-bearing concepts are precisely your three Stories: a practice (with goods internal to it, cultivating specific virtues), a tradition (a historically extended argument about how to pursue those goods), and the narrative unity of a life (life as quest, intelligible only as story). Your Order is his tradition-bearing practice; your Quest is his narrative unity; your Initiation is his account of how virtues are acquired through apprenticeship to a practice. He built the philosophical skeleton for exactly this, minus the myth. You're supplying the myth. Read him if you haven't; he will save you years of first-principles work and confirm the deepest intuition here — that character is not a type you have but a tradition you enter.
Calderón's El gran teatro del mundo, the 17th-century auto sacramental in which God as Author distributes roles — King, Beggar, Rich Man, Laborer — and judges each soul not on which role it received but on how it played. And behind Calderón, Epictetus, Enchiridion 17: you are an actor in a drama whose casting belongs to the Author; your work is to play the assigned part well.
Dumézil's trifunctional hypothesis is the academic backbone: across the whole Indo-European world, society and pantheon alike organize into three functions — sovereignty/sacred knowledge (priest-king-magician), martial force (warrior), and production/fertility (cultivator, craftsman, merchant). The medieval Three Estates — oratores, bellatores, laboratores, those who pray, those who fight, those who work — is the same triad surfacing in Christendom. This is why Wizard, Knight, and Builder feel non-negotiable: they are the three primordial functions wearing mythic dress.
Svadharma from the Gita — "better one's own dharma poorly performed than another's dharma performed well" (3.35, restated 18.47)Â