Without the Active Imagination the infinite exaltations provoked in a being by the succession of theophanies which that being bestows on himself would be impossible. There is no ground for setting down the Active Imagination as illusion.
Corbin argues that the Active Imagination is an ontologically indispensable faculty through which theophanic self-revelation occurs, not a subjective illusion susceptible to rational dismissal.
, Creative Imagination in the Sufism of Ibn Arabi, 1969thesis