"Definitions and language varies from circle to circle- and on occasion mage to mage. My personal opinion is a possession is wherein anyone has their body made a puppet by an entity on the other side of the veil, their will channeled through them for better or for worse. An Abomination when an entity slips through the veil and inhabits the skin of a mage." She sips her wine and lets the worst of the chill drop from her eyes. It is no fault of his that it's a touchy subject.