In Mage: the Ascension, quintessence is the substance that makes a thing "real" or "actual."

In Mage: the Ascension, quintessence is the substance that makes a thing "real" or "actual." It's manipulated through the Prime Sphere. Mages store it within their Patterns and spend it to augment spells or create magickal effects. These questions relate to the collection, use, and lore behind this substance.