Let us recall that the brahmana represents the contemplative and sacerdotal mentality, the KSHATRIYA, the active, combative, dynamic, noble, heroic mentality; the vaishya, the mercantile or artisanal mentality – or again that of the peasant according to the case, the vaishya mentality being “horizontal” in a certain sense. As for the shudra, he is a materialist by his nature; his virtue is obedience. (GTUFS: SufismVQ, Human Premises of a Religious Dilemma)