Mana is that which defines a mage. It is potential that dwells within a person but does not always manifest itself. All men are connected to the Fade; we go there to dream. But only those with this potential may draw upon its power. Mana is, then, a measurement of one's ability to draw power from the Fade, and it is this power that is expended in magic. --From The Lectures of First Enchanter Wenselus Note: This codex entry does not appear in other Origins except the Magi Origin.