One of the Central Pillars of the Esoteric Tradition

Indeed, imagination, linked to the right brain, is one of the central pillars of the esoteric tradition. As the historian of esotericism Antoine Faivre writes, imagination is “a kind of organ of the soul, thanks to which humanity can establish a cognitive and visionary relationship with an intermediary world,” what Faivre’s fellow esoteric scholar Henry Corbin called the “Mundus Imaginalis,” the “Imaginal World,” an inner yet nonetheless objective symbolic territory, having its own rules and inhabitants.

Gary Lachman
The Secret Teachers of the Western World