To escape, the Spiritual Entity manifests an Image it adopts for him, like a veil. It pretends the Image is moving in a certain direction so the Eye will follow it. At which point the Spiritual Entity escapes its confinement and disappears. Whoever knows this and wishes to maintain perception of the Spiritual, must not let his Eye follow this illusion. This is one of the Divine Secrets.
The Meccan Revelations by Muhiyuddin Ibn Arabi
Quoted in Usman T Malik, The Pauper Prince and the Eucalyptus Jinn