The Iifa Tree, was planted long ago by Garland as a gigantic soul filter, filtering the souls of Gaia. The souls are drawn towards the tree and intercepted by the SoulCage. The mist that covers the Mist Continent is a by-product of this filtering system, and the mist is pumped from the tree to the Mist Continent through the roots. This mist is used by workers in Dali to manufacture Black Mages. The dwarves of Conde Petie refer to the Iifa Tree as the Sanctuary, because after going through a ceremony, not unlike being married, the happy couple journeys to the Iifa Tree to inscribe their names.
