For the perspective of those interpreting voices, visions, and other unusual experiences in spiritual terms, as a connection to the transcendent domain, see, for example, The Center for Spiritual Emergence and the memoir My Beautiful Psychosis. For the perspective of those interpreting unusual experiences and behaviors, such as “performing excessive religious rituals,” as symptoms of mental illness, see, for example, “Religious Delusions” in Medical News Today. For a clinician’s take on this subject, see Ron Unger, Working Effectively with the Intersection of Psychosis and Spirituality.