In his Manifesto of Visionary Art, artist and author Laurence Caruana elucidates a near-exhaustive list of the sources and inspirations from which Visionary Art can spring. It is worth quoting:
“...the sources of Visionary Experience are many and varied: dreams, lucid dreams, nightmares, hypnogogic images, waking dreams, trance states... hypnotic states, illness, near-death experiences, shamanic vision-quests, meditation... madness... day-dreaming, fantasy, the imagination, inspiration, visitation, revelation, spontaneous visions, psychedelics, reading and... the metanoic experiences brought on by Visionary Art itself.”